Supplementary Material to: Assessment of Density Functional Methods for Exciton Binding Energies and Related Optoelectronic Properties

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Supplementary Material to: Assessment of Density Functional Methods for Exciton Binding Energies and Related Optoelectronic

Properties

Jui-Che Lee,

Jeng-Da Chai*

and Shiang-Tai Lin*

Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan.

E-mail: stlin@ntu.edu.tw

Department of Physics, Center for Theoretical Sciences, and Center for Quantum Science and Engineering, National Taiwan University, Taipei 10617, Taiwan.

E-mail: jdchai@phys.ntu.edu.tw

Table S1. Vertical ionization potentials (1) of the 121 molecules studied (pp. 3-6).

Table S2. Vertical ionization potentials (2) of the 121 molecules studied (pp. 7-10).

Table S3. Vertical electron affinities (1) of the 121 molecules studied (pp. 11-13).

Table S4. Vertical electron affinities (2) of the 121 molecules studied (pp. 14-17).

Table S5. Vertical electron affinities (3) of the 121 molecules studied (pp. 18-21).

Table S6. Fundamental gaps (1) of the 121 molecules studied (pp. 23-26).

Table S7. Fundamental gaps (2) of the 121 molecules studied (pp. 27-30).

Table S8. Fundamental gaps (3) of the 121 molecules studied (pp. 31-34).

Table S9. Optical gaps of the 121 molecules studied (pp. 35-38).

Table S10. Exciton binding energies (1) of the 121 molecules studied (pp. 39-42).

Table S11. Exciton binding energies (2) of the 121 molecules studied (pp. 43-46).

Table S12. Exciton binding energies (3) of the 121 molecules studied (pp. 47-50).

Electronic Supplementary Material (ESI) for RSC Advances.

This journal is © The Royal Society of Chemistry 2015

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Table S13. Statistical errors (in eV) of CCSD and CCSD(T) methods for IP(1) (pp. 51).

Table S14. Statistical errors (in eV) of CCSD for IP(1), EA(1), and Eg(1) (pp. 51).

Table S15. Statistical errors (in eV) of 9 density functional methods for vertical ionization potentials (pp.

51).

Figure S1. IP(1) calculated using CCSD and CCSD(T) methods with respect to the experimental data. (pp.

52).

Figure S2. IP(1), EA(1), and Eg(1) calculated using CCSD with respect to those calculated using CCSD(T). (pp. 53).

References (pp. 54).

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Table S1

.

Vertical ionization potentials (1) [in eV] of the 121 molecules studied. Most experimental reference values are collected from the NIST database,

1

while other publications

2-13

are adopted for the molecules marked.

Molecule Expt. CCSD LDA PBE M06L B3LYP ωB97 ωB97X ωB97X-D M06-2X M06-HF

Al (Aluminum atom) 5.99 5.93 6.46 6.08 5.89 6.02 5.89 5.95 6.00 5.79 5.84 AlCl3 (Aluminum trichloride) 12.01 12.25 11.55 10.88 11.13 11.32 12.20 12.02 11.76 11.89 12.41 Ar (Argon atom) 15.76 15.68 16.51 15.71 15.79 15.79 15.73 15.75 15.78 15.78 15.73 B (Boron atom) 8.30 8.19 9.09 8.67 8.61 8.74 8.40 8.51 8.56 8.31 8.10 BCl3 (Borane, trichloro-) 11.64 11.98 11.47 10.80 11.07 11.22 11.95 11.79 11.56 11.72 12.20 Be (Beryllium atom)11 9.32 9.29 9.46 9.00 8.93 9.11 8.92 8.87 8.84 9.06 9.08 BF3 (Borane, trifluoro-) 15.96 16.34 15.28 14.44 14.51 15.22 15.57 15.52 15.38 16.04 17.28 C (Carbon atom) 11.26 11.18 12.14 11.54 11.39 11.54 11.29 11.39 11.44 11.31 11.18 C2F4 (Tetrafluoroethylene) 10.69 10.76 10.92 10.08 10.00 10.48 10.36 10.41 10.41 10.73 11.29 C2H2 (Acetylene) 11.49 11.33 12.25 11.41 11.17 11.35 11.20 11.24 11.27 11.36 11.62 C2H2O2 (Ethanedial) 10.60 10.86 10.68 9.99 10.02 10.47 10.74 10.70 10.58 10.82 11.48 C2H4 (Ethylene) 10.68 10.50 11.45 10.62 10.38 10.53 10.37 10.41 10.43 10.46 10.55 C2H4O (Ethylene oxide) 10.57 10.68 11.20 10.47 10.40 10.60 10.63 10.61 10.58 10.77 11.04 C2H4S (Thiirane) 9.05 9.02 9.64 8.92 8.94 9.00 8.98 9.00 9.01 9.10 9.27 C2H5N (Aziridine) 9.85 9.79 10.33 9.63 9.61 9.73 9.75 9.73 9.71 9.90 10.13 C2H6 (Ethane) 11.99 12.83 12.42 11.91 12.11 12.28 12.53 12.46 12.36 12.54 12.90 C2HF3 (Trifluoroethylene)5 10.62 10.50 10.82 10.00 9.93 10.28 10.16 10.21 10.21 10.46 10.88 C2N2 (Cyanogen) 13.51 13.59 13.98 13.14 13.03 13.25 13.39 13.37 13.32 13.57 14.01 C3H4 (Cyclopropene) 9.86 9.90 10.41 9.72 9.63 9.76 9.72 9.73 9.72 9.89 10.19 C3H6 (Cyclopropane) 10.54 10.90 11.50 10.75 10.76 10.82 10.83 10.82 10.80 10.96 11.06 C3H8 (Propane) 11.51 12.23 11.59 11.09 11.32 11.55 11.91 11.82 11.67 11.87 12.36 C3O2 (Carbon suboxide)10 10.80 10.69 11.60 10.76 10.60 10.86 10.69 10.74 10.79 11.00 11.42 C4H2 (Diacetylene) 10.30 10.23 10.70 9.92 9.86 9.98 10.02 10.02 10.00 10.21 10.57 C4H4O (Furan) 8.90 8.93 9.70 8.90 8.76 8.89 8.84 8.85 8.85 9.02 9.30 C4H6 (Cyclobutene) 9.43 9.56 10.14 9.41 9.27 9.43 9.36 9.37 9.38 9.51 9.73 C4N2 (2-Butynedinitrile)4 11.84 12.11 12.31 11.51 11.45 11.67 11.89 11.86 11.79 12.05 12.56 CCl4 (Carbon tetrachloride) 11.69 11.91 11.19 10.54 10.83 11.03 11.87 11.68 11.41 11.62 12.20 CF2Cl2 (Difluorodichloromethane) 12.24 12.43 12.20 11.49 11.72 11.89 12.37 12.27 12.12 12.29 12.65 CF2O (Carbonic difluoride) 13.60 13.58 14.05 13.16 13.07 13.47 13.45 13.44 13.43 13.70 14.10 CF3Br (Bromotrifluoromethane)8 12.08 12.04 12.45 11.64 11.50 11.93 11.86 11.89 11.89 11.95 12.45 CF3Cl (Methane, chlorotrifluoro-) 13.08 13.10 13.32 12.55 12.69 12.93 13.00 13.01 12.99 13.15 13.38 CF4 (Carbon tetrafluoride) 16.20 16.77 15.36 14.54 14.72 15.47 15.82 15.79 15.65 16.44 17.84

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CFCl3

(Trichloromonofluoromethane) 11.76 12.02 11.50 10.83 11.10 11.27 11.98 11.82 11.59 11.78 12.26 CH2CCH2 (Allene) 10.20 10.15 10.84 10.08 9.90 10.10 10.03 10.05 10.06 10.16 10.41 CH2CCl2 (Ethene, 1,1-dichloro-) 10.00 10.00 10.29 9.56 9.55 9.72 9.88 9.84 9.78 9.91 10.22 CH2CF2 (Ethene, 1,1-difluoro-)5 10.70 10.67 11.20 10.37 10.24 10.55 10.42 10.46 10.47 10.67 11.02 CH2CHCHO (Acrolein)13 10.10 10.11 10.55 9.80 9.72 9.96 10.01 9.99 9.95 10.15 10.48 CH2CHCl (Ethene, chloro-) 10.20 10.11 10.57 9.83 9.81 9.92 9.99 9.97 9.94 10.05 10.27 CH2CHF (Ethene, fluoro-) 10.63 10.52 11.18 10.36 10.24 10.44 10.31 10.35 10.36 10.49 10.71 CH2Cl2 (Methylene chloride) 11.40 11.66 11.31 10.69 10.89 11.23 11.65 11.57 11.44 11.55 11.82 CH2CO (Ketene) 9.64 9.68 10.53 9.72 9.55 9.80 9.69 9.72 9.74 9.87 10.20 CH2F2 (Methane, difluoro-) 13.27 13.69 13.07 12.42 12.53 13.01 13.13 13.12 13.05 13.43 14.19 CH3 (Methyl radical) 9.84 9.71 10.55 10.02 9.85 9.92 9.72 9.76 9.77 9.76 9.69 CH3CCCH3 (2-Butyne) 9.79 9.64 9.99 9.30 9.23 9.41 9.42 9.43 9.41 9.60 9.93 CH3CCH (Propyne) 10.37 10.39 10.95 10.21 10.08 10.26 10.21 10.23 10.23 10.38 10.69 CH3CH2Cl (Ethyl chloride) 11.06 11.12 11.70 10.66 10.81 10.94 11.07 11.06 11.02 11.13 11.28 CH3CH2OH (Ethanol) 10.64 10.75 10.82 10.19 10.21 10.52 10.63 10.60 10.53 10.75 11.13 CH3Cl (Methyl chloride) 11.29 11.38 11.75 11.09 11.21 11.27 11.34 11.33 11.32 11.40 11.54 CH3COCl (Acetyl Chloride) 11.03 11.23 11.47 10.74 10.77 10.95 11.07 11.04 10.99 11.14 12.08 CH3F (Methyl fluoride) 13.04 13.46 13.36 12.71 12.78 13.08 13.15 13.13 13.08 13.32 13.80 CH3NHCH3 (Dimethylamine) 8.95 8.99 9.44 8.77 8.75 8.92 8.96 8.94 8.90 9.08 9.31 CH3NO2 (Methane, nitro-) 11.29 11.41 11.76 11.00 11.01 11.45 11.69 11.64 11.53 11.90 12.65 CH3OCH3 (Dimethyl ether) 10.10 10.11 10.39 9.73 9.72 9.94 10.01 9.98 9.94 10.14 10.44 CH3OH (Methyl alcohol) 10.96 11.02 11.38 10.68 10.63 10.89 10.93 10.91 10.87 11.06 11.41 CH3SH (Methanethiol) 9.44 9.39 9.95 9.26 9.28 9.36 9.35 9.38 9.38 9.44 9.54 CH3SiH3 (Methyl silane) 11.60 11.73 11.80 11.25 11.45 11.57 12.17 12.11 12.00 11.70 12.28 CH4 (Methane) 13.60 14.38 14.58 13.96 14.05 14.18 14.18 14.18 14.16 14.29 14.58 CHCl3 (Chloroform) 11.50 11.63 11.18 10.52 10.78 10.92 11.61 11.45 11.23 11.41 11.83 CHF3 (Methane, trifluoro-) 15.50 14.97 14.25 13.52 13.60 14.19 14.36 14.34 15.18 14.69 15.54 CHONH2 (Formamide)3 10.40 10.31 11.01 10.22 10.04 10.31 10.27 10.25 10.24 10.41 10.72 Cl (Chlorine atom) 12.97 12.84 13.40 12.97 12.88 13.07 12.96 13.01 13.04 13.00 13.09 Cl2 (Chlorine diatomic) 11.49 11.64 11.87 11.18 11.35 11.42 11.66 11.60 11.54 11.64 11.82 ClF (Chlorine monofluoride) 12.77 12.81 13.16 12.41 12.51 12.71 12.72 12.74 12.74 12.93 13.20 ClF3 (Chlorine trifluoride) 13.05 13.24 12.74 11.98 12.11 12.66 12.88 12.87 12.77 13.23 14.07 ClO (Monochlorine monoxide) 11.01 11.03 11.19 10.75 10.72 11.04 11.06 11.06 11.04 11.13 11.46 CO (Carbon monoxide) 14.01 14.01 14.60 13.86 13.66 14.19 14.18 14.14 14.11 14.13 14.57 CO2 (Carbon dioxide) 13.78 13.77 14.55 13.67 13.52 13.81 13.84 13.82 13.80 14.03 14.44 CS (Carbon monosulfide)9 11.34 11.35 11.99 11.29 11.10 11.49 11.53 11.49 11.48 11.43 11.77 CS2 (Carbon disulfide) 10.09 9.97 10.74 10.03 10.05 10.06 10.00 10.03 10.08 10.15 10.31

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F (Fluorine atom) 17.42 17.28 18.52 17.66 17.21 17.73 17.46 17.45 17.47 17.50 17.54 F2 (Fluorine diatomic) 15.70 16.08 16.18 15.35 15.42 15.92 15.81 15.87 15.88 16.28 16.83 F2O (Difluorine monoxide) 13.26 13.55 13.48 12.69 12.76 13.37 13.32 13.36 13.34 13.75 14.45 FCN (Cyanogen fluoride)3 13.65 13.52 14.19 13.31 13.16 13.43 13.30 13.34 13.36 13.59 13.94 H (Hydrogen atom) 13.60 13.60 13.51 13.60 13.71 13.67 13.65 13.65 13.68 13.57 13.53 H2CO (Formaldehyde) 10.89 10.88 11.45 10.75 10.69 10.89 10.83 10.84 10.83 10.99 11.28 H2CS (Thioformaldehyde) 9.38 9.32 9.95 9.25 9.22 9.32 9.25 9.29 9.32 9.40 9.64 H2O (Water)6 12.62 12.63 13.70 12.80 12.44 12.81 12.71 12.69 12.68 12.78 13.03 H2O2 (Hydrogen peroxide) 11.70 11.79 12.04 11.29 11.29 11.67 11.68 11.68 11.64 11.92 12.37 H2S (Hydrogen sulfide) 10.50 10.38 11.15 10.41 10.39 10.46 10.40 10.43 10.46 10.47 10.50 HCCCN (Cyanoacetylene)2 11.75 11.70 12.17 11.37 11.27 11.44 11.50 11.50 11.47 11.69 12.08 HCCF (Fluoroacetylene)5 11.50 11.34 12.00 11.16 11.03 11.26 11.13 11.17 11.19 11.39 11.73 HCl (Hydrogen sulfide)12 12.77 12.69 13.50 12.73 12.73 12.78 12.72 12.75 12.78 12.79 12.85 HCN (Hydrogen cyanide) 13.61 13.62 14.64 13.75 13.46 13.68 13.51 13.55 13.58 13.66 13.90 HCO (Formyl radical) 9.31 9.68 10.27 9.77 9.74 10.06 9.90 9.95 9.96 9.96 10.23 HCOOH (Formic acid) 11.50 11.26 11.93 11.10 10.92 11.24 11.21 11.19 11.17 11.37 11.74 He (Helium atom) 24.59 24.56 24.78 24.47 24.69 24.94 24.66 24.66 24.72 24.72 24.76 HF (Hydrogen fluoride) 16.12 16.12 17.30 16.32 15.88 16.33 16.21 16.16 16.16 16.21 16.41 Li (Lithium atom) 5.39 5.34 5.88 5.58 5.10 5.63 5.33 5.30 5.37 5.41 5.83 Mg (Magnesium atom) 7.65 7.53 8.15 7.61 7.53 7.73 7.64 7.59 7.47 7.77 7.74 N (Nitrogen atom) 14.53 14.47 15.46 14.73 14.68 14.66 14.52 14.57 14.61 14.53 14.33 N2 (Nitrogen diatomic) 15.58 15.71 16.14 15.39 15.32 15.83 15.89 15.90 15.87 16.07 16.84 N2H4 (Hydrazine) 8.98 9.84 10.03 9.39 9.45 9.64 9.71 9.69 9.64 9.85 10.18 N2O (Nitrous oxide) 12.89 12.77 13.79 12.90 12.71 12.93 12.77 12.79 12.83 12.98 13.15 Na (Sodium atom) 5.14 4.68 5.78 5.36 4.49 5.43 4.88 4.88 4.97 5.16 5.62 NaCl (Sodium Chloride) 9.80 9.12 10.10 9.32 9.20 9.33 9.19 9.22 9.25 9.29 9.39 Ne (Neon atom) 21.57 21.46 22.74 21.66 21.18 21.71 21.53 21.47 21.49 21.50 21.67 NF3 (Nitrogen trifluoride) 13.60 13.73 13.70 12.92 12.94 13.43 13.43 13.44 13.40 13.74 14.31 NH (Imidogen) (3⌃−) 13.49 13.44 14.44 13.79 13.60 13.72 13.55 13.58 13.61 13.58 13.51 NH2 (Amino radical) 12.00 11.96 12.86 12.18 11.79 12.26 12.12 12.07 12.06 11.98 12.10 NH3 (Ammonia) 10.82 10.85 11.77 10.96 10.67 11.00 10.92 10.90 10.90 10.96 11.19 NO (Nitric oxide) 9.26 9.80 10.36 9.90 9.77 10.27 10.01 10.09 10.12 10.14 10.57 NO2 (Nitrogen dioxide) 11.23 11.57 11.81 11.17 11.06 11.71 11.65 11.68 11.65 11.88 12.70 O (Oxygen atom) 13.62 13.46 14.57 14.06 13.65 14.14 13.81 13.80 13.79 13.68 13.77 O2 (Oxygen diatomic) (3⌃g) 12.30 12.61 13.27 12.55 12.63 13.02 12.83 12.90 12.93 13.10 13.48 O3 (Ozone) 12.73 13.29 13.41 12.61 12.52 13.14 13.22 13.22 13.15 13.58 14.56 OCS (Carbonyl sulfide) 11.19 11.20 12.02 11.24 11.22 11.31 11.22 11.26 11.31 11.38 11.57 OH (Hydroxyl radical) 13.02 12.97 14.07 13.30 12.90 13.34 13.14 13.13 13.13 13.13 13.19

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P (Phosphorus atom) 10.49 10.45 11.02 10.49 10.58 10.39 10.39 10.40 10.42 10.32 10.16 P2 (Phosphorus diatomic) 10.62 10.44 11.22 10.51 10.43 10.44 10.29 10.85 10.84 10.44 10.54 PF3 (Phosphorus trifluoride) 12.20 11.74 12.06 11.27 11.25 11.62 11.55 11.59 11.57 11.67 12.00 PH3 (Phosphine) 10.59 10.53 11.15 10.48 10.54 10.59 10.49 10.53 10.56 10.50 10.37 S (Sulfur atom) 10.36 10.21 11.08 10.43 10.22 10.56 10.39 10.46 10.50 10.43 10.51 S2 (Sulfur diatomic) (3⌃g) 9.55 9.52 10.00 9.46 9.56 9.62 9.83 9.76 9.70 9.66 9.77 Si (Silicon atom) 8.15 8.09 8.41 8.20 8.06 8.11 8.04 8.08 8.12 7.98 7.99 Si2H6 (Disilane) 10.53 10.56 10.89 10.27 10.34 10.44 10.47 10.48 10.46 10.48 10.48 SiF2 (Silicon difluoride) 11.08 11.10 11.56 10.81 10.80 11.07 11.05 11.05 11.03 10.99 11.07 SiF4 (Silicon tetrafluoride) 16.40 16.91 15.27 14.45 14.57 15.36 15.95 15.85 15.63 16.40 17.89 SiH3 (Silyl) 8.74 8.84 9.40 8.95 8.87 8.96 8.79 8.85 8.88 8.91 8.92 SiH4 (Silane) 12.30 12.86 12.67 12.14 12.37 12.47 12.74 12.67 12.58 12.59 12.82 SiO (Silicon monoxide)7 11.61 11.51 12.02 11.29 11.23 11.47 11.51 11.53 11.51 11.55 11.85 SO2 (Sulfur dioxide) 12.50 12.58 12.86 12.08 12.01 12.42 12.51 12.51 12.46 12.66 13.26

MAEa 0.56 0.35 0.36 0.23 0.20 0.19 0.19 0.18 0.46

MSEa 0.45 -0.25 -0.30 -0.03 -0.01 -0.01 -0.03 0.09 0.41

RMSa 0.63 0.51 0.48 0.33 0.28 0.27 0.26 0.27 0.60

MAEb 0.58 0.42 0.39 0.26 0.16 0.17 0.20 0.13 0.37

MSEb 0.39 -0.31 -0.36 -0.09 -0.07 -0.07 -0.09 0.03 0.35

RMSc     0.66 0.61 0.56 0.37 0.23 0.24 0.28 0.18 0.46

a

The reference values are experimental data.

b

The reference values are calculated by CCSD.

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Table S2. Vertical ionization potentials (2) [in eV] of the 121 molecules studied. Most experimental reference values are collected from the NIST database

1

, while other publications

2-13

are adopted for the molecules marked.

Molecule Expt. CCSD LDA PBE M06L B3LYP ωB97 ωB97X ωB97X-D M06-2X M06-HF

Al (Aluminum atom) 5.99 5.93 3.43 3.09 3.05 3.63 5.89 5.78 5.48 4.31 5.50 AlCl3 (Aluminum trichloride) 12.01 12.25 8.63 8.01 8.25 9.13 12.17 11.86 11.30 10.74 12.86 Ar (Argon atom) 15.76 15.68 10.89 10.29 10.58 11.67 14.89 14.56 13.93 13.54 16.05 B (Boron atom) 8.30 8.19 4.54 4.17 4.35 5.16 7.90 7.72 7.23 6.16 7.57 BCl3 (Borane, trichloro-) 11.64 11.98 8.33 7.72 7.96 8.85 11.90 11.59 11.03 10.49 12.73 Be (Beryllium atom)11 9.32 9.29 6.04 5.61 5.67 6.32 8.78 8.63 8.29 7.25 8.66 BF3 (Borane, trifluoro-) 15.96 16.34 10.80 10.05 10.32 11.94 14.97 14.78 14.20 14.52 18.16 C (Carbon atom) 11.26 11.18 6.56 6.10 6.21 7.33 10.36 10.12 9.55 8.83 11.11 C2F4 (Tetrafluoroethylene) 10.69 10.76 7.03 6.29 6.32 7.59 10.38 10.16 9.64 9.23 11.78 C2H2 (Acetylene) 11.49 11.33 7.84 7.20 7.31 8.19 11.19 10.91 10.35 9.73 11.81 C2H2O2 (Ethanedial) 10.60 10.86 7.01 6.38 6.53 7.77 10.60 10.39 9.85 9.53 12.15 C2H4 (Ethylene) 10.68 10.50 7.40 6.74 6.78 7.63 10.54 10.27 9.74 9.11 11.04 C2H4O (Ethylene oxide) 10.57 10.68 6.88 6.28 6.47 7.71 10.69 10.45 9.88 9.73 12.62 C2H4S (Thiirane) 9.05 9.02 5.93 5.36 5.47 6.36 9.27 8.99 8.46 7.81 9.94 C2H5N (Aziridine) 9.85 9.79 6.36 5.78 5.95 6.97 9.93 9.66 9.11 8.64 11.00 C2H6 (Ethane) 11.99 12.83 8.64 8.18 8.46 9.45 12.42 12.14 11.58 11.03 13.32 C2HF3 (Trifluoroethylene)5 10.62 10.50 6.92 6.21 6.26 7.41 10.20 9.97 9.46 8.98 11.34 C2N2 (Cyanogen) 13.51 13.59 10.13 9.40 9.49 10.44 13.33 13.06 12.53 12.00 14.20 C3H4 (Cyclopropene) 9.86 9.90 6.71 6.11 6.20 7.05 9.88 9.62 9.11 8.51 10.51 C3H6 (Cyclopropane) 10.54 10.90 7.71 7.07 7.19 8.15 11.10 10.82 10.27 9.61 11.66 C3H8 (Propane) 11.51 12.23 8.21 7.75 8.01 9.00 11.93 11.65 11.10 10.55 12.74 C3O2 (Carbon suboxide)10 10.80 10.69 7.98 7.26 7.31 8.24 10.78 10.60 10.19 9.65 11.75 C4H2 (Diacetylene) 10.30 10.23 7.31 6.64 6.70 7.50 10.23 9.98 9.51 8.90 10.83 C4H4O (Furan) 8.90 8.93 6.35 5.67 5.67 6.49 9.18 8.96 8.49 7.83 9.68 C4H6 (Cyclobutene) 9.43 9.56 6.66 6.04 6.10 6.92 9.73 9.48 8.98 8.37 10.30 C4N2 (2-Butynedinitrile)4 11.84 12.11 9.16 8.44 8.50 9.36 12.06 11.82 11.34 10.79 12.84 CCl4 (Carbon tetrachloride) 11.69 11.91 8.29 7.68 7.93 8.84 11.90 11.58 11.01 10.48 12.73 CF2Cl2

(Difluorodichloromethane) 12.24 12.43 8.70 8.07 8.30 9.28 12.34 12.02 11.44 10.94 13.24 CF2O (Carbonic difluoride) 13.60 13.58 9.25 8.51 8.71 10.13 13.16 12.92 12.33 12.32 15.42 CF3Br (Bromotrifluoromethane)8 12.08 12.04 8.49 7.83 7.98 8.98 11.90 11.65 11.12 10.57 12.81 CF3Cl (Methane, chlorotrifluoro-) 13.08 13.10 9.20 8.55 8.76 9.84 12.95 12.64 12.04 11.60 14.05 CF4 (Carbon tetrafluoride) 16.20 16.77 11.15 10.40 10.70 12.35 15.38 15.19 14.61 14.97 18.67 CFCl3 11.76 12.02 8.35 7.74 7.98 8.91 11.97 11.65 11.08 10.56 12.84

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(Trichloromonofluoromethane)

CH2CCH2 (Allene) 10.20 10.15 7.19 6.57 6.63 7.51 10.37 10.11 9.59 8.95 10.96 CH2CCl2 (Ethene, 1,1-dichloro-) 10.00 10.00 7.08 6.44 6.53 7.37 10.17 9.92 9.42 8.78 10.75 CH2CF2 (Ethene, 1,1-difluoro-)5 10.70 10.67 7.25 6.56 6.63 7.66 10.51 10.27 9.74 9.22 11.44 CH2CHCHO (Acrolein)13 10.10 10.11 6.62 6.00 6.19 7.40 10.35 10.12 9.56 9.33 11.72 CH2CHCl (Ethene, chloro-) 10.20 10.11 7.06 6.42 6.51 7.34 10.17 9.91 9.41 8.78 10.73 CH2CHF (Ethene, fluoro-) 10.63 10.52 7.19 6.52 6.59 7.54 10.41 10.16 9.64 9.07 11.16 CH2Cl2 (Methylene chloride) 11.40 11.66 7.95 7.38 7.56 8.55 11.58 11.28 10.71 10.15 12.37 CH2CO (Ketene) 9.64 9.68 6.57 5.91 5.97 6.93 9.71 9.48 8.99 8.39 10.47 CH2F2 (Methane, difluoro-) 13.27 13.69 8.73 8.14 8.38 9.76 12.73 12.50 11.92 11.78 14.77 CH3 (Methyl radical) 9.84 9.71 5.83 5.43 5.54 6.47 9.41 9.15 8.58 7.84 9.48 CH3CCCH3 (2-Butyne) 9.79 9.64 6.53 5.93 6.05 6.90 9.76 9.50 8.98 8.38 10.38 CH3CCH (Propyne) 10.37 10.39 7.11 6.49 6.60 7.48 10.40 10.13 9.59 8.98 11.03 CH3CH2Cl (Ethyl chloride) 11.06 11.12 7.54 6.97 7.16 8.12 11.16 10.85 10.28 9.73 11.92 CH3CH2OH (Ethanol) 10.64 10.75 6.75 6.16 6.35 7.60 10.61 10.35 9.77 9.53 12.24 CH3Cl (Methyl chloride) 11.29 11.38 7.67 7.11 7.31 8.27 11.30 10.99 10.43 9.87 12.10 CH3COCl (Acetyl Chloride) 11.03 11.23 7.77 7.12 7.32 8.39 11.25 11.02 10.50 10.14 12.52 CH3F (Methyl fluoride) 13.04 13.46 8.67 8.09 8.37 9.68 12.68 12.44 11.87 11.71 14.51 CH3NHCH3 (Dimethylamine) 8.95 8.99 5.61 5.07 5.25 6.27 9.19 8.92 8.38 7.94 10.23 CH3NO2 (Methane, nitro-) 11.29 11.41 7.59 6.91 7.08 8.49 11.50 11.27 10.69 10.65 12.90 CH3OCH3 (Dimethyl ether) 10.10 10.11 6.41 5.84 6.04 7.21 10.13 9.89 9.34 9.08 11.68 CH3OH (Methyl alcohol) 10.96 11.02 6.85 6.26 6.47 7.72 10.73 10.48 9.90 9.68 12.43 CH3SH (Methanethiol) 9.44 9.39 6.12 5.56 5.71 6.58 9.51 9.22 8.69 8.00 9.97 CH3SiH3 (Methyl silane) 11.60 11.73 8.48 7.91 8.10 9.00 11.93 11.66 11.12 10.38 12.35 CH4 (Methane) 13.60 14.38 9.96 9.46 9.75 10.78 13.90 13.59 12.98 12.44 14.83 CHCl3 (Chloroform) 11.50 11.63 8.02 7.41 7.65 8.55 11.59 11.28 10.72 10.18 12.41 CHF3 (Methane, trifluoro-) 15.50 14.97 9.98 9.33 9.53 11.00 13.96 13.73 13.15 13.05 16.13 CHONH2 (Formamide)3 10.40 10.31 6.64 6.02 6.16 7.42 10.37 10.12 9.56 9.37 11.80 Cl (Chlorine atom) 12.97 12.84 8.49 8.14 8.18 9.35 12.44 12.13 11.55 10.94 13.41 Cl2 (Chlorine diatomic) 11.49 11.64 7.90 7.31 7.46 8.46 11.48 11.18 10.63 10.05 12.35 ClF (Chlorine monofluoride) 12.77 12.81 8.48 7.85 8.03 9.23 12.31 12.02 11.43 11.03 13.65 ClF3 (Chlorine trifluoride) 13.05 13.24 8.67 7.99 8.17 9.62 12.65 12.40 11.82 11.72 14.83 ClO (Monochlorine monoxide) 11.01 11.03 6.69 6.28 6.32 7.72 10.71 10.46 9.89 9.49 12.40 CO (Carbon monoxide) 14.01 14.01 9.60 9.04 9.21 10.53 13.73 13.42 12.79 12.27 15.08 CO2 (Carbon dioxide) 13.78 13.77 9.81 9.09 9.23 10.46 13.38 13.15 12.61 12.34 15.02 CS (Carbon monosulfide)9 11.34 11.35 7.92 7.39 7.52 8.68 11.79 11.50 10.92 10.19 12.68 CS2 (Carbon disulfide) 10.09 9.97 7.42 6.82 6.98 7.62 10.21 9.98 9.58 8.81 10.42 F (Fluorine atom) 17.42 17.28 10.89 10.31 10.46 12.29 15.37 15.15 14.53 14.85 18.65

(9)

F2 (Fluorine diatomic) 15.70 16.08 10.15 9.46 9.77 11.53 14.56 14.38 13.78 14.20 18.02 F2O (Difluorine monoxide) 13.26 13.55 8.37 7.69 7.89 9.69 12.74 12.53 11.92 12.17 16.05 FCN (Cyanogen fluoride)3 13.65 13.52 9.45 8.73 8.85 9.97 12.99 12.71 12.13 11.70 14.13 H (Hydrogen atom) 13.60 13.60 7.80 7.59 7.95 8.78 11.91 11.62 11.06 10.30 12.23 H2CO (Formaldehyde) 10.89 10.88 6.83 6.26 6.48 7.67 10.56 10.34 9.80 9.54 12.29 H2CS (Thioformaldehyde) 9.38 9.32 6.08 5.53 5.63 6.53 9.41 9.14 8.63 7.95 10.10 H2O (Water)6 12.62 12.63 7.88 7.25 7.43 8.84 11.99 11.70 11.07 11.00 14.08 H2O2 (Hydrogen peroxide) 11.70 11.79 7.08 6.45 6.62 8.10 11.20 10.94 10.32 10.29 13.54 H2S (Hydrogen sulfide) 10.50 10.38 6.88 6.31 6.45 7.33 10.32 10.02 9.48 8.76 10.72 HCCCN (Cyanoacetylene)2 11.75 11.70 8.56 7.87 7.94 8.80 11.60 11.35 10.85 10.27 12.32 HCCF (Fluoroacetylene)5 11.50 11.34 7.68 7.01 7.11 8.11 11.06 10.80 10.25 9.71 11.95 HCl (Hydrogen sulfide)12 12.77 12.69 8.63 8.05 8.24 9.24 12.36 12.04 11.44 10.89 13.18 HCN (Hydrogen cyanide) 13.61 13.62 9.68 9.02 9.16 10.13 13.24 12.93 12.33 11.80 14.08 HCO (Formyl radical) 9.31 9.68 5.58 5.16 5.23 6.52 9.38 9.16 8.61 8.05 10.63 HCOOH (Formic acid) 11.50 11.26 7.39 6.72 6.85 8.16 11.13 10.89 10.32 10.15 13.08 He (Helium atom) 24.59 24.56 16.02 15.76 16.54 18.00 21.13 20.91 20.28 20.61 24.16 HF (Hydrogen fluoride) 16.12 16.12 10.31 9.65 9.89 11.55 14.68 14.44 13.82 14.12 17.77 Li (Lithium atom) 5.39 5.34 3.58 3.22 3.22 3.65 5.34 5.31 5.20 4.17 5.20 Mg (Magnesium atom) 7.65 7.53 5.20 4.70 4.72 5.30 7.35 7.32 7.08 6.18 7.40 N (Nitrogen atom) 14.53 14.47 8.85 8.30 8.59 9.78 12.93 12.70 12.10 11.76 14.41 N2 (Nitrogen diatomic) 15.58 15.71 10.90 10.27 10.35 11.97 15.13 14.87 14.25 13.95 17.18 N2H4 (Hydrazine) 8.98 9.84 5.84 5.30 5.48 6.62 9.64 9.36 8.77 8.39 10.99 N2O (Nitrous oxide) 12.89 12.77 9.12 8.40 8.47 9.62 12.40 12.19 11.70 11.29 13.78 Na (Sodium atom) 5.14 4.68 3.50 3.04 2.96 3.49 4.83 4.93 4.89 4.19 5.20 NaCl (Sodium Chloride) 9.80 9.12 5.86 5.27 5.26 6.32 9.20 8.91 8.36 7.79 9.99 Ne (Neon atom) 21.57 21.46 14.06 13.35 13.74 15.65 18.64 18.51 17.92 18.69 22.84 NF3 (Nitrogen trifluoride) 13.60 13.73 9.10 8.43 8.57 10.08 13.07 12.83 12.24 12.11 15.28 NH (Imidogen) (3⌃−) 13.49 13.44 8.41 7.92 8.13 9.36 12.47 12.21 11.61 11.28 13.96 NH2 (Amino radical) 12.00 11.96 7.70 7.22 7.32 8.56 11.64 11.33 10.72 10.29 12.95 NH3 (Ammonia) 10.82 10.85 6.75 6.18 6.37 7.51 10.62 10.31 9.70 9.33 11.90 NO (Nitric oxide) 9.26 9.80 4.95 4.52 4.50 6.18 9.12 8.89 8.31 8.04 11.39 NO2 (Nitrogen dioxide) 11.23 11.57 7.05 6.49 6.46 8.17 11.11 10.89 10.31 10.12 13.55 O (Oxygen atom) 13.62 13.46 7.98 7.60 7.75 9.27 12.35 12.07 11.42 11.22 14.11 O2 (Oxygen diatomic) (3⌃g) 12.30 12.61 7.40 6.82 7.08 8.72 11.73 11.52 10.93 11.00 14.52 O3 (Ozone) 12.73 13.29 8.71 8.00 8.07 9.69 12.72 12.49 11.89 11.66 13.75 OCS (Carbonyl sulfide) 11.19 11.20 8.14 7.50 7.65 8.47 11.23 10.99 10.53 9.85 11.75 OH (Hydroxyl radical) 13.02 12.97 7.93 7.39 7.44 9.01 12.13 11.85 11.21 11.11 14.41 P (Phosphorus atom) 10.49 10.45 6.74 6.30 6.43 7.12 10.07 9.79 9.26 8.37 10.07

(10)

P2 (Phosphorus diatomic) 10.62 10.44 7.72 7.14 7.22 7.85 10.50 10.30 9.90 9.00 10.53 PF3 (Phosphorus trifluoride) 12.20 11.74 7.98 7.34 7.45 8.56 11.41 11.17 10.64 10.04 12.35 PH3 (Phosphine) 10.59 10.53 7.24 6.71 6.87 7.67 10.51 10.26 9.77 8.96 10.74 S (Sulfur atom) 10.36 10.21 6.66 6.16 6.14 7.21 10.09 9.84 9.33 8.53 10.60 S2 (Sulfur diatomic) (3⌃g) 9.55 9.52 6.29 5.82 5.89 6.81 9.72 9.43 8.90 8.13 10.21 Si (Silicon atom) 8.15 8.09 4.79 4.61 4.57 5.29 7.94 7.74 7.31 6.25 7.82 Si2H6 (Disilane) 10.53 10.56 7.72 7.18 7.33 8.09 10.81 10.58 10.11 9.28 11.11 SiF2 (Silicon difluoride) 11.08 11.10 7.73 7.12 7.21 8.15 10.86 10.67 10.20 9.43 11.32 SiF4 (Silicon tetrafluoride) 16.40 16.91 11.44 10.68 10.95 12.52 15.57 15.36 14.77 15.05 18.59 SiH3 (Silyl) 8.74 8.84 5.76 5.37 5.43 6.15 8.80 8.60 8.16 7.24 8.93 SiH4 (Silane) 12.30 12.86 9.00 8.52 8.86 9.67 12.66 12.37 11.82 11.10 13.12 SiO (Silicon monoxide)7 11.61 11.51 8.06 7.47 7.57 8.61 11.43 11.23 10.74 10.10 12.34 SO2 (Sulfur dioxide) 12.50 12.58 8.71 8.03 8.07 9.39 12.29 12.07 11.53 11.12 13.92

MAEa 3.86 4.44 4.29 3.19 0.42 0.55 1.06 1.51 0.99

MSEa -3.86 -4.44 -4.29 -3.19 -0.28 -0.53 -1.06 -1.51 0.89

RMSa 3.98 4.55 4.39 3.27 0.67 0.80 1.24 1.59 1.15

MAEb 3.92 4.50 4.35 3.25 0.41 0.59 1.13 1.57 0.91

MSEb -3.92 -4.50 -4.35 -3.25 -0.34 -0.59 -1.12 -1.57 0.84

RMSb     4.05 4.61 4.45 3.32 0.67 0.82 1.28 1.63 1.04

a

The reference values are experimental data.

b

The reference values are calculated by CCSD.

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Table S3. Vertical electron affinities (1) [in eV] of the 121 molecules studied. The reference values are calculated by CCSD.

Molecule CCSD LDA PBE M06L B3LYP ωB97 ωB97X ωB97X-D M06-2X M06-HF

Al (Aluminum atom) 0.38 1.02 0.59 0.33 0.46 0.20 0.28 0.38 0.31 0.34 AlCl3 (Aluminum trichloride) 0.02 0.85 0.31 -0.33 0.24 -0.29 -0.17 -0.08 0.10 0.59 Ar (Argon atom) -2.81 -2.05 -2.59 -3.14 -2.57 -2.94 -2.88 -2.73 -2.54 -2.19

B (Boron atom) 0.18 1.13 0.62 0.26 0.46 0.12 0.24 0.35 0.25 0.14

BCl3 (Borane, trichloro-) -0.25 0.48 -0.02 -0.25 -0.07 -0.17 -0.13 -0.13 -0.10 0.12 Be (Beryllium atom) -0.38 0.37 0.01 -0.21 -0.07 -0.43 -0.35 -0.24 -0.30 -0.37 BF3 (Borane, trifluoro-) -1.04 -0.15 -0.60 -0.82 -0.62 -1.12 -1.01 -0.97 -0.84 -0.42

C (Carbon atom) 1.16 2.22 1.59 1.29 1.37 1.14 1.23 1.31 1.26 1.12

C2F4 (Tetrafluoroethylene) -1.21 -0.32 -0.78 -1.66 -0.81 -1.32 -1.29 -1.21 -1.10 -1.30 C2H2 (Acetylene) -2.01 -0.09 -0.37 -0.47 -0.43 -0.71 -0.70 -0.65 -0.64 -1.89 C2H2O2 (Ethanedial) 0.63 1.71 1.05 0.79 1.06 0.83 0.89 0.91 0.95 1.13 C2H4 (Ethylene) -1.82 -0.12 -0.46 -0.69 -0.63 -0.75 -0.73 -0.86 -0.81 -1.70 C2H4O (Ethylene oxide) -0.87 -0.04 -0.39 -0.70 -0.43 -0.68 -0.67 -0.61 -0.77 -0.73 C2H4S (Thiirane) -0.79 -0.10 -0.44 -0.69 -0.51 -0.69 -0.67 -0.61 -0.74 -0.64 C2H5N (Aziridine) -0.56 0.00 -0.36 -0.64 -0.41 -0.65 -0.63 -0.56 -0.57 -0.22 C2H6 (Ethane) -0.63 -0.06 -0.42 -0.78 -0.47 -0.72 -0.71 -0.66 -0.60 -0.24 C2HF3 (Trifluoroethylene) -0.56 0.02 -0.35 -1.57 -0.40 -0.66 -0.64 -0.57 -1.58 -1.47 C2N2 (Cyanogen) -0.22 0.80 0.16 -0.08 0.22 0.06 0.11 0.12 0.10 0.32 C3H4 (Cyclopropene) -1.76 -0.11 -0.43 -1.54 -0.51 -0.72 -0.70 -0.64 -0.60 -1.60 C3H6 (Cyclopropane) -0.66 -0.08 -0.43 -0.72 -0.49 -0.77 -0.75 -0.70 -0.61 -0.25 C3H8 (Propane) -0.61 -0.02 -0.38 -0.69 -0.44 -0.73 -0.71 -0.66 -0.55 -0.16 C3O2 (Carbon suboxide) -0.66 -0.11 -0.75 -1.01 -0.57 -1.00 -0.97 -0.91 -0.77 -0.07 C4H2 (Diacetylene) -1.24 -0.13 -0.65 -1.00 -0.72 -0.66 -0.65 -0.99 -0.97 -0.89 C4H4O (Furan) -0.74 -0.01 -0.35 -0.62 -0.41 -0.67 -0.65 -0.60 -1.49 -1.45 C4H6 (Cyclobutene) -2.30 -0.04 -0.39 -0.95 -0.45 -0.72 -0.71 -0.65 -1.16 -2.24 C4N2 (2-Butynedinitrile) 0.64 1.76 1.08 0.87 1.11 0.95 0.99 1.01 1.01 1.23 CCl4 (Carbon tetrachloride) -0.39 0.77 0.24 -0.04 0.10 -0.48 -0.39 -0.25 -0.26 -0.45 CF2Cl2 (Difluorodichloromethane) -0.89 0.04 -0.43 -0.83 -0.52 -1.14 -1.06 -0.92 -0.87 -0.58 CF2O (Carbonic difluoride) -2.39 -0.30 -0.76 -1.36 -0.78 -1.25 -1.21 -1.14 -1.48 -1.48 CF3Br (Bromotrifluoromethane) -0.79 0.03 -0.46 -0.80 -0.49 -0.95 -0.87 -0.75 -0.74 -0.54 CF3Cl (Methane, chlorotrifluoro-) -1.05 -0.31 -0.74 -1.23 -0.81 -1.22 -1.17 -1.08 -1.06 -0.69 CF4 (Carbon tetrafluoride) -1.34 -0.59 -1.02 -1.72 -1.07 -1.53 -1.52 -1.47 -1.30 -0.86 CFCl3 (Trichloromonofluoromethane) -0.62 0.44 -0.07 -0.46 -0.17 -0.77 -0.68 -0.55 -0.56 -0.70 CH2CCH2 (Allene) -0.57 -0.02 -0.37 -0.76 -0.42 -0.67 -0.66 -0.62 -0.91 -0.18 CH2CCl2 (Ethene, 1,1-dichloro-) -0.97 -0.21 -0.34 -1.05 -0.41 -0.67 -0.65 -0.59 -0.57 -0.20

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CH2CF2 (Ethene, 1,1-difluoro-) -0.97 -0.01 -0.37 -0.60 -0.42 -0.67 -0.65 -0.60 -0.57 -1.50 CH2CHCHO (Acrolein) -0.46 0.68 0.06 -0.20 0.03 -0.15 -0.11 -0.10 -0.06 0.05 CH2CHCl (Ethene, chloro-) -0.86 -0.54 -0.39 -1.30 -0.44 -0.67 -0.65 -0.58 -1.31 -1.30 CH2CHF (Ethene, fluoro-) -0.87 -0.08 -0.42 -1.54 -1.37 -0.69 -0.67 -0.61 -1.65 -1.71 CH2Cl2 (Methylene chloride) -0.51 0.13 -0.29 -0.65 -0.35 -0.64 -0.61 -0.54 -0.55 -0.23 CH2CO (Ketene) -0.52 -0.01 -0.40 -0.62 -0.37 -0.63 -0.61 -0.55 -0.81 -0.80 CH2F2 (Methane, difluoro-) -0.59 -0.04 -0.38 -0.66 -0.42 -0.65 -0.63 -0.57 -0.61 -0.33 CH3 (Methyl radical) -0.23 0.82 0.06 -0.22 0.01 -0.22 -0.15 -0.10 -0.09 0.03 CH3CCCH3 (2-Butyne) -0.68 0.06 -0.30 -0.54 -0.93 -0.67 -0.66 -0.61 -0.60 -0.63 CH3CCH (Propyne) -0.55 0.01 -0.35 -0.64 -0.41 -0.64 -0.62 -0.56 -0.52 -0.54 CH3CH2Cl (Ethyl chloride) -0.52 0.06 -0.32 -0.77 -0.37 -0.63 -0.60 -0.54 -0.54 -0.16 CH3CH2OH (Ethanol) -0.54 0.07 -0.31 -0.66 -0.36 -0.64 -0.62 -0.55 -0.53 -0.17 CH3Cl (Methyl chloride) -0.52 0.06 -0.32 -0.58 -0.37 -0.62 -0.59 -0.53 -0.55 -1.14 CH3COCl (Acetyl Chloride) -0.91 0.19 -0.25 -0.51 -0.27 -0.55 -0.53 -0.47 -0.70 -0.69 CH3F (Methyl fluoride) -0.59 -0.05 -0.39 -0.61 -0.43 -0.65 -0.63 -0.58 -0.60 -0.32 CH3NHCH3 (Dimethylamine) -0.56 0.03 -0.34 -0.62 -0.40 -0.68 -0.67 -0.60 -0.52 -0.32 CH3NO2 (Methane, nitro-) -0.28 0.56 0.07 -0.18 0.06 -0.49 -0.47 -0.41 -0.16 0.18 CH3OCH3 (Dimethyl ether) -0.59 0.00 -0.36 -0.67 -0.41 -0.69 -0.68 -0.62 -0.55 -0.19 CH3OH (Methyl alcohol) -0.55 0.03 -0.34 -0.58 -0.38 -0.64 -0.62 -0.55 -0.56 -0.27 CH3SH (Methanethiol) -0.52 0.09 -0.31 -0.69 -0.36 -0.64 -0.62 -0.56 -0.53 -0.21 CH3SiH3 (Methyl silane) -0.53 0.05 -0.32 -0.57 -0.37 -0.64 -0.63 -0.57 -0.49 -0.14 CH4 (Methane) -0.63 -0.09 -0.44 -0.74 -0.48 -0.68 -0.67 -0.62 -0.61 -0.32 CHCl3 (Chloroform) -0.55 0.27 -0.22 -0.54 -0.33 -0.69 -0.65 -0.57 -0.56 -0.24 CHF3 (Methane, trifluoro-) -0.61 -0.07 -0.42 -0.69 -0.46 -0.68 -0.65 -0.59 -0.60 -0.36 CHONH2 (Formamide) -0.36 0.19 -0.18 -1.55 -0.22 -0.44 -0.41 -0.34 -1.61 -1.54

Cl (Chlorine atom) 3.51 3.97 3.65 3.59 3.67 3.56 3.62 3.66 3.61 3.65

Cl2 (Chlorine diatomic) 0.64 1.45 0.89 0.61 0.90 0.69 0.73 0.75 0.70 0.79 ClF (Chlorine monofluoride) 0.34 1.21 0.62 0.32 0.65 0.44 0.46 0.46 0.39 0.47 ClF3 (Chlorine trifluoride) 1.19 1.69 1.05 0.83 1.29 1.18 1.18 1.14 1.23 1.60 ClO (Monochlorine monoxide) 2.04 2.31 1.95 1.80 2.07 2.06 2.05 2.03 2.16 2.38 CO (Carbon monoxide) -1.49 -0.48 -0.91 -1.18 -0.99 -1.53 -1.50 -1.25 -1.32 -1.41 CO2 (Carbon dioxide) -0.84 -0.18 -0.65 -1.37 -0.65 -1.06 -1.02 -0.95 -0.87 -0.59 CS (Carbon monosulfide) -0.08 0.61 0.10 -0.12 0.16 -1.14 -1.10 0.09 -0.01 0.13 CS2 (Carbon disulfide) 0.07 0.54 0.03 -0.22 0.14 -1.23 0.19 0.14 0.07 0.37

F (Fluorine atom) 3.21 4.63 3.65 3.08 3.53 3.44 3.38 3.34 3.27 3.37

F2 (Fluorine diatomic) 0.42 1.32 0.67 0.35 0.81 0.62 0.61 0.58 0.54 0.68 F2O (Difluorine monoxide) -0.38 0.55 -0.08 -0.45 0.04 -0.24 -0.23 -0.24 -0.32 -0.19 FCN (Cyanogen fluoride) -0.69 0.07 -0.42 -1.06 -0.44 -0.87 -0.82 -0.74 -0.68 -0.43

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H (Hydrogen atom) 0.74 1.31 0.71 0.59 0.91 0.65 0.74 0.81 0.61 0.65 H2CO (Formaldehyde) -0.55 0.01 -0.49 -0.81 -0.40 -1.01 -0.59 -0.83 -0.82 -0.79 H2CS (Thioformaldehyde) 0.26 0.95 0.42 0.24 0.46 0.42 0.43 0.41 0.37 0.43 H2O (Water) -0.58 0.02 -0.38 -0.80 -0.40 -0.69 -0.66 -0.59 -0.59 -0.38 H2O2 (Hydrogen peroxide) -0.92 -0.01 -0.41 -0.78 -0.55 -0.79 -0.75 -0.68 -0.85 -0.84 H2S (Hydrogen sulfide) -0.50 0.08 -0.32 -0.73 -0.36 -0.63 -0.60 -0.53 -0.56 -0.34 HCCCN (Cyanoacetylene) -0.36 0.36 -0.20 -0.48 -0.24 -0.53 -0.40 -0.44 -0.45 -0.30 HCCF (Fluoroacetylene) -0.56 0.02 -0.35 -1.71 -0.39 -0.64 -0.62 -0.56 -1.71 -1.64 HCl (Hydrogen sulfide) -0.52 0.07 -0.33 -0.69 -0.36 -0.65 -0.60 -0.53 -0.59 -0.43 HCN (Hydrogen cyanide) -0.49 0.00 -0.34 -1.31 -0.37 -0.52 -0.49 -0.43 -1.43 -1.50 HCO (Formyl radical) -0.05 0.69 0.06 -0.06 0.14 -0.06 0.00 0.03 0.09 0.25 HCOOH (Formic acid) -0.59 0.01 -0.35 -1.35 -0.39 -0.68 -0.64 -0.57 -1.46 -1.54 He (Helium atom) -2.63 -2.05 -2.32 -2.63 -2.37 -2.64 -2.60 -2.49 -2.47 -2.26 HF (Hydrogen fluoride) -0.64 -0.05 -0.44 -0.84 -0.45 -0.73 -0.69 -0.61 -0.65 -0.46

Li (Lithium atom) 0.62 0.93 0.51 0.52 0.56 0.40 0.48 0.51 0.52 0.40

Mg (Magnesium atom) -0.24 0.30 -0.02 -0.20 -0.08 -0.33 -0.29 -0.22 -0.26 -0.24 N (Nitrogen atom) -0.34 0.81 0.28 -0.21 0.23 -0.08 -0.08 -0.08 -0.14 -0.01 N2 (Nitrogen diatomic) -2.32 -1.16 -1.64 -1.92 -1.45 -1.91 -1.86 -1.75 -1.70 -2.05 N2H4 (Hydrazine) -0.46 0.15 -0.26 -0.69 -0.30 -0.58 -0.54 -0.48 -0.48 -0.27 N2O (Nitrous oxide) -2.05 -0.53 -0.97 -2.03 -1.00 -1.48 -1.43 -1.35 -1.85 -1.56

Na (Sodium atom) 0.54 0.96 0.55 0.47 0.58 0.54 0.57 0.52 0.56 0.53

NaCl (Sodium Chloride) 0.64 1.19 0.80 0.37 0.82 0.57 0.59 0.65 0.62 1.01 Ne (Neon atom) -5.32 -4.41 -4.93 -5.46 -4.90 -5.57 -5.43 -5.32 -4.89 -4.58 NF3 (Nitrogen trifluoride) -2.04 -0.92 -1.37 -2.03 -1.43 -1.96 -1.93 -1.85 -1.67 -1.25

NH (Imidogen) 0.14 1.29 0.56 0.22 0.51 0.29 0.32 0.32 0.27 0.24

NH2 (Amino radical) 0.54 1.67 0.84 0.45 0.76 0.61 0.64 0.66 0.69 0.90 NH3 (Ammonia) -0.57 0.00 -0.38 -0.77 -0.41 -0.67 -0.65 -0.58 -0.60 -0.35 NO (Nitric oxide) -0.43 0.19 -0.13 -0.41 -0.06 -0.28 -0.24 -0.22 -0.24 -0.09 NO2 (Nitrogen dioxide) 1.47 1.92 1.20 0.84 1.45 1.39 1.41 1.36 1.54 2.15

O (Oxygen atom) 1.24 2.57 1.78 1.26 1.68 1.48 1.48 1.46 1.41 1.34

O2 (Oxygen diatomic) -0.14 0.60 -0.11 -0.44 0.05 -0.12 -0.08 -0.10 -0.03 0.34

O3 (Ozone) 2.30 2.56 1.91 1.83 2.44 2.48 2.49 2.41 2.68 3.30

OCS (Carbonyl sulfide) -0.86 -0.51 -1.00 -1.31 -0.70 -1.05 -1.00 -0.92 -1.20 -0.92 OH (Hydroxyl radical) 1.60 2.86 1.97 1.49 1.85 1.73 1.73 1.71 1.70 1.90 P (Phosphorus atom) 0.61 1.50 0.88 0.61 0.96 0.72 0.82 0.88 0.86 0.96 P2 (Phosphorus diatomic) 0.46 1.07 0.58 0.42 0.62 0.66 0.66 0.64 0.53 0.71 PF3 (Phosphorus trifluoride) -1.23 -0.42 -0.82 -1.20 -0.89 -1.37 -1.32 -1.21 -1.14 -1.01 PH3 (Phosphine) -0.52 0.04 -0.34 -0.73 -0.39 -0.64 -0.61 -0.55 -0.57 -0.32

(14)

S (Sulfur atom) 1.95 2.87 2.17 1.99 2.20 2.03 2.12 2.16 2.11 2.19 S2 (Sulfur diatomic) 1.45 2.00 1.36 1.26 1.47 1.50 1.52 1.51 1.51 1.72

Si (Silicon atom) 1.34 1.63 1.49 1.39 1.34 1.19 1.24 1.32 1.26 1.23

Si2H6 (Disilane) -0.66 0.04 -0.31 -0.84 -0.39 -0.69 -0.68 -0.62 -0.62 -0.55 SiF2 (Silicon difluoride) 0.07 0.75 0.29 0.05 0.29 0.08 0.13 0.17 0.13 0.24 SiF4 (Silicon tetrafluoride) -0.81 0.04 -0.47 -1.31 -0.51 -1.03 -1.00 -0.94 -0.79 -0.36

SiH3 (Silyl) 0.82 1.61 0.94 0.74 0.97 0.81 0.88 0.92 0.83 0.96

SiH4 (Silane) -0.59 -0.02 -0.38 -0.86 -0.43 -0.68 -0.66 -0.61 -0.58 -0.29 SiO (Silicon monoxide) 0.01 0.66 0.22 -0.02 0.22 -0.01 0.05 0.11 0.04 0.13 SO2 (Sulfur dioxide) 0.87 1.36 0.77 0.58 1.00 0.98 0.98 0.94 0.99 1.40

MAE 0.79 0.34 0.24 0.31 0.20 0.18 0.16 0.21 0.33

MSE 0.78 0.32 -0.07 0.30 0.02 0.07 0.13 0.05 0.17

RMS   0.86 0.46 0.38 0.43 0.34 0.32 0.31 0.37 0.42

(15)

Table S4. Vertical electron affinities (2) [in eV] of the 121 molecules studied. The reference values are calculated by CCSD.

Molecule CCSD LDA PBE M06L B3LYP ωB97 ωB97X ωB97X-D M06-2X M06-HF

Al (Aluminum atom) 0.38 -0.86 -1.26 -1.56 -0.92 0.61 0.57 0.46 -0.44 0.44 AlCl3 (Aluminum trichloride) 0.02 -0.92 -1.39 -1.94 -1.08 -0.17 -0.05 -0.06 -0.65 0.61 Ar (Argon atom) -2.81 -4.14 -4.59 -4.89 -4.31 -2.89 -2.81 -2.71 -3.40 -2.25 B (Boron atom) 0.18 -1.35 -1.77 -1.85 -1.32 0.56 0.51 0.30 -0.67 0.52 BCl3 (Borane, trichloro-) -0.25 -2.09 -2.07 -2.22 -2.01 0.22 0.09 -0.31 -1.19 0.45 Be (Beryllium atom) -0.38 -1.02 -1.31 -1.38 -1.14 -0.40 -0.31 -0.28 -0.91 -0.48 BF3 (Borane, trifluoro-) -1.04 -1.64 -2.05 -1.86 -1.84 -1.10 -0.95 -0.93 -1.45 -0.68 C (Carbon atom) 1.16 -1.38 -1.88 -2.16 -1.15 1.36 1.21 0.83 -0.02 1.81 C2F4 (Tetrafluoroethylene) -1.21 -1.71 -1.80 -2.77 -1.94 -1.28 -1.24 -1.17 -1.63 -1.58 C2H2 (Acetylene) -2.01 -0.95 -1.25 -1.30 -1.16 -0.67 -0.65 -0.61 -1.12 -2.00 C2H2O2 (Ethanedial) 0.63 -1.63 -2.20 -2.36 -1.37 1.04 0.89 0.48 -0.21 1.63 C2H4 (Ethylene) -1.82 -1.13 -1.45 -1.51 -1.36 -0.70 -0.68 -0.83 -1.27 -1.68 C2H4O (Ethylene oxide) -0.87 -1.10 -1.42 -1.56 -1.30 -0.63 -0.61 -0.56 -1.24 -0.95 C2H4S (Thiirane) -0.79 -1.16 -1.44 -1.60 -1.33 -0.62 -0.59 -0.54 -1.19 -0.88 C2H5N (Aziridine) -0.56 -1.11 -1.43 -1.57 -1.31 -0.59 -0.55 -0.51 -1.11 -0.41 C2H6 (Ethane) -0.63 -1.10 -1.44 -1.65 -1.32 -0.68 -0.66 -0.62 -1.14 -0.45 C2HF3 (Trifluoroethylene) -0.56 -1.12 -1.47 -2.89 -1.33 -0.60 -0.57 -0.53 -2.30 -1.69 C2N2 (Cyanogen) -0.22 -2.54 -3.09 -3.26 -2.24 0.17 0.01 -0.39 -1.17 0.72 C3H4 (Cyclopropene) -1.76 -1.05 -1.37 -2.86 -1.24 -0.67 -0.65 -0.60 -1.17 -1.56 C3H6 (Cyclopropane) -0.66 -1.08 -1.41 -1.61 -1.31 -0.72 -0.71 -0.66 -1.15 -0.46 C3H8 (Propane) -0.61 -1.01 -1.35 -1.52 -1.25 -0.68 -0.66 -0.62 -1.09 -0.33 C3O2 (Carbon suboxide) -0.66 -3.43 -3.86 -4.17 -3.00 -0.95 -0.91 -0.85 -1.33 0.37 C4H2 (Diacetylene) -1.24 -2.15 -2.44 -2.58 -2.19 -0.62 -0.60 -1.13 -1.81 -0.79 C4H4O (Furan) -0.74 -0.93 -1.26 -1.48 -1.17 -0.62 -0.59 -0.55 -2.13 -1.68 C4H6 (Cyclobutene) -2.30 -1.00 -1.33 -1.71 -1.23 -0.67 -0.65 -0.61 -1.58 -2.03 C4N2 (2-Butynedinitrile) 0.64 -1.14 -1.74 -1.87 -1.03 1.19 1.05 0.70 -0.09 1.57 CCl4 (Carbon tetrachloride) -0.39 -1.49 -1.89 -2.52 -1.52 -0.16 -0.21 -0.34 -1.08 -0.10 CF2Cl2 (Difluorodichloromethane) -0.89 -1.67 -2.02 -2.29 -1.80 -1.07 -0.99 -0.93 -1.51 -0.77 CF2O (Carbonic difluoride) -2.39 -1.86 -2.28 -2.65 -2.06 -1.19 -1.13 -1.09 -2.16 -1.70 CF3Br (Bromotrifluoromethane) -0.79 -1.87 -2.17 -2.58 -2.01 -0.84 -0.79 -0.80 -1.65 -0.35 CF3Cl (Methane, chlorotrifluoro-) -1.05 -1.77 -2.14 -2.60 -1.96 -1.11 -1.06 -1.05 -1.70 -0.89 CF4 (Carbon tetrafluoride) -1.34 -1.98 -2.39 -2.85 -2.22 -1.47 -1.44 -1.41 -1.94 -1.22 CFCl3 (Trichloromonofluoromethane) -0.62 -1.62 -2.00 -2.44 -1.69 -0.53 -0.56 -0.66 -1.37 -0.29 CH2CCH2 (Allene) -0.57 -0.99 -1.32 -1.69 -1.22 -0.63 -0.61 -0.58 -1.43 -0.39 CH2CCl2 (Ethene, 1,1-dichloro-) -0.97 -2.20 -1.43 -2.76 -1.29 -0.59 -0.56 -0.52 -1.11 -0.44

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CH2CF2 (Ethene, 1,1-difluoro-) -0.97 -1.09 -1.43 -1.55 -1.31 -0.61 -0.59 -0.55 -1.13 -1.73 CH2CHCHO (Acrolein) -0.46 -2.20 -2.67 -3.00 -2.08 0.15 0.00 -0.37 -1.13 0.40 CH2CHCl (Ethene, chloro-) -0.86 -2.47 -1.44 -2.92 -1.32 -0.59 -0.57 -0.53 -2.12 -1.12 CH2CHF (Ethene, fluoro-) -0.87 -1.13 -1.45 -3.02 -2.70 -0.63 -0.61 -0.57 -2.46 -1.68 CH2Cl2 (Methylene chloride) -0.51 -1.27 -1.60 -1.82 -1.41 -0.55 -0.52 -0.47 -1.11 -0.47 CH2CO (Ketene) -0.52 -1.46 -1.71 -1.83 -1.27 -0.57 -0.54 -0.50 -1.36 -0.89 CH2F2 (Methane, difluoro-) -0.59 -1.18 -1.51 -1.72 -1.37 -0.60 -0.58 -0.54 -1.22 -0.57 CH3 (Methyl radical) -0.23 -1.89 -2.37 -2.31 -1.77 0.46 0.33 0.03 -0.90 0.57 CH3CCCH3 (2-Butyne) -0.68 -0.89 -1.24 -1.27 -1.60 -0.62 -0.61 -0.57 -1.04 -0.56 CH3CCH (Propyne) -0.55 -1.02 -1.32 -1.63 -1.13 -0.57 -0.55 -0.50 -0.92 -0.59 CH3CH2Cl (Ethyl chloride) -0.52 -1.08 -1.43 -1.74 -1.30 -0.56 -0.52 -0.49 -1.07 -0.36 CH3CH2OH (Ethanol) -0.54 -1.05 -1.39 -1.54 -1.26 -0.58 -0.55 -0.50 -1.06 -0.34 CH3Cl (Methyl chloride) -0.52 -1.17 -1.51 -1.50 -1.36 -0.56 -0.52 -0.47 -1.11 -1.33 CH3COCl (Acetyl Chloride) -0.91 -1.43 -1.70 -1.87 -1.22 -0.48 -0.45 -0.40 -1.34 -0.01 CH3F (Methyl fluoride) -0.59 -1.16 -1.49 -1.53 -1.36 -0.60 -0.58 -0.54 -1.19 -0.55 CH3NHCH3 (Dimethylamine) -0.56 -1.01 -1.34 -1.47 -1.23 -0.63 -0.61 -0.56 -1.03 -0.11 CH3NO2 (Methane, nitro-) -0.28 -1.45 -1.71 -1.88 -1.53 -0.42 -0.39 -0.35 -1.12 1.43 CH3OCH3 (Dimethyl ether) -0.59 -1.02 -1.35 -1.50 -1.25 -0.65 -0.62 -0.57 -1.07 -0.38 CH3OH (Methyl alcohol) -0.55 -1.13 -1.46 -1.49 -1.33 -0.59 -0.56 -0.51 -1.10 -0.49 CH3SH (Methanethiol) -0.52 -1.09 -1.44 -1.60 -1.30 -0.58 -0.55 -0.50 -1.03 -0.44 CH3SiH3 (Methyl silane) -0.53 -1.01 -1.26 -1.38 -1.16 -0.60 -0.58 -0.53 -1.00 -0.37 CH4 (Methane) -0.63 -1.17 -1.49 -1.76 -1.37 -0.63 -0.61 -0.58 -1.16 -0.59 CHCl3 (Chloroform) -0.55 -1.49 -1.87 -2.06 -1.63 -0.58 -0.54 -0.50 -1.24 -0.51 CHF3 (Methane, trifluoro-) -0.61 -1.26 -1.59 -1.77 -1.45 -0.62 -0.60 -0.57 -1.19 -0.57 CHONH2 (Formamide) -0.36 -1.07 -1.41 -2.77 -1.24 -0.36 -0.33 -0.29 -2.27 -1.73 Cl (Chlorine atom) 3.51 0.03 -0.24 -0.15 0.79 3.70 3.45 2.92 2.23 4.27 Cl2 (Chlorine diatomic) 0.64 -1.51 -1.98 -2.38 -1.37 0.83 0.65 0.28 -0.45 1.27 ClF (Chlorine monofluoride) 0.34 -2.14 -2.63 -3.02 -1.90 0.41 0.24 -0.17 -0.89 0.95 ClF3 (Chlorine trifluoride) 1.19 -1.90 -2.40 -2.71 -1.40 1.23 1.01 0.50 -0.01 2.47 ClO (Monochlorine monoxide) 2.04 -1.50 -1.82 -1.83 -0.63 2.20 1.98 1.45 1.03 3.56 CO (Carbon monoxide) -1.49 -2.46 -2.74 -2.83 -2.49 -1.45 -1.41 -1.38 -2.19 -1.44 CO2 (Carbon dioxide) -0.84 -1.75 -2.15 -2.58 -1.93 -1.02 -0.96 -0.91 -1.50 -0.77 CS (Carbon monosulfide) -0.08 -2.41 -2.82 -3.10 -2.12 -1.04 -1.00 -0.30 -1.18 0.67 CS2 (Carbon disulfide) 0.07 -2.01 -2.41 -2.85 -1.79 -1.18 0.31 -0.07 -0.93 0.86 F (Fluorine atom) 3.21 -0.88 -1.53 -1.54 -0.03 3.08 2.84 2.20 2.06 5.19 F2 (Fluorine diatomic) 0.42 -3.04 -3.50 -3.62 -2.48 0.12 -0.05 -0.56 -0.67 2.46 F2O (Difluorine monoxide) -0.38 -3.12 -3.56 -4.09 -2.75 -0.38 -0.55 -1.02 -1.50 1.18 FCN (Cyanogen fluoride) -0.69 -1.72 -2.15 -2.33 -1.87 -0.80 -0.73 -0.72 -1.40 -0.59

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H (Hydrogen atom) 0.74 -1.23 -1.71 -1.32 -1.00 1.40 1.32 0.99 -0.14 1.42 H2CO (Formaldehyde) -0.55 -2.35 -2.64 -2.73 -1.36 -0.96 -0.52 -1.11 -1.81 -0.59 H2CS (Thioformaldehyde) 0.26 -2.08 -2.52 -2.78 -1.79 0.66 0.48 0.06 -0.79 0.79 H2O (Water) -0.58 -1.40 -1.75 -1.85 -1.57 -0.64 -0.59 -0.54 -1.26 -0.75 H2O2 (Hydrogen peroxide) -0.92 -1.36 -1.72 -1.87 -1.57 -0.74 -0.69 -0.64 -1.39 -1.12 H2S (Hydrogen sulfide) -0.50 -1.17 -1.51 -1.72 -1.37 -0.58 -0.54 -0.48 -1.06 -0.56 HCCCN (Cyanoacetylene) -0.36 -2.04 -2.34 -2.45 -2.04 -0.36 -0.31 -0.73 -1.49 -0.08 HCCF (Fluoroacetylene) -0.56 -1.07 -1.40 -2.90 -1.28 -0.59 -0.57 -0.52 -2.38 -1.85 HCl (Hydrogen sulfide) -0.52 -1.32 -1.67 -1.88 -1.49 -0.60 -0.54 -0.49 -1.25 -0.71 HCN (Hydrogen cyanide) -0.49 -1.26 -1.58 -2.73 -1.42 -0.46 -0.42 -0.40 -2.19 -1.73 HCO (Formyl radical) -0.05 -2.22 -2.60 -2.59 -1.98 0.30 0.19 -0.15 -0.94 0.91 HCOOH (Formic acid) -0.59 -1.12 -1.43 -2.71 -1.31 -0.61 -0.57 -0.53 -2.18 -1.48 He (Helium atom) -2.63 -3.93 -4.19 -4.33 -3.92 -2.63 -2.56 -2.52 -3.65 -3.02 HF (Hydrogen fluoride) -0.64 -1.64 -2.00 -2.11 -1.77 -0.69 -0.64 -0.61 -1.45 -0.86 Li (Lithium atom) 0.62 -0.51 -0.86 -0.94 -0.57 0.69 0.72 0.70 -0.10 0.47 Mg (Magnesium atom) -0.24 -0.66 -0.92 -0.93 -0.80 -0.32 -0.27 -0.20 -0.71 -0.39 N (Nitrogen atom) -0.34 -2.67 -3.09 -3.14 -2.30 0.18 0.00 -0.45 -1.43 0.16 N2 (Nitrogen diatomic) -2.32 -3.74 -3.98 -4.01 -2.45 -1.86 -1.81 -1.71 -2.30 -1.55 N2H4 (Hydrazine) -0.46 -1.20 -1.57 -1.80 -1.39 -0.51 -0.47 -0.44 -1.11 -0.38 N2O (Nitrous oxide) -2.05 -2.03 -2.40 -4.02 -2.20 -1.42 -1.35 -1.29 -2.83 -0.87 Na (Sodium atom) 0.54 -0.49 -0.83 -0.83 -0.55 0.69 0.69 0.66 -0.09 0.45 NaCl (Sodium Chloride) 0.64 -0.46 -0.80 -0.88 -0.51 0.63 0.66 0.67 -0.12 0.75 Ne (Neon atom) -5.32 -7.28 -7.68 -7.81 -7.27 -5.43 -5.39 -5.53 -6.25 -5.03 NF3 (Nitrogen trifluoride) -2.04 -2.59 -2.98 -3.37 -2.71 -1.89 -1.84 -1.79 -2.30 -1.59 NH (Imidogen) 0.14 -2.27 -2.79 -2.84 -1.94 0.68 0.50 0.03 -0.78 1.29 NH2 (Amino radical) 0.54 -1.89 -2.47 -2.49 -1.57 1.14 0.94 0.47 -0.26 1.86 NH3 (Ammonia) -0.57 -1.27 -1.60 -1.83 -1.45 -0.62 -0.59 -0.53 -1.17 -0.65 NO (Nitric oxide) -0.43 -3.43 -3.71 -3.86 -2.85 -0.32 -0.51 -0.95 -1.55 0.98 NO2 (Nitrogen dioxide) 1.47 -1.59 -2.16 -2.58 -1.13 1.55 1.36 0.84 0.37 3.16 O (Oxygen atom) 1.24 -1.93 -2.47 -2.63 -1.32 1.60 1.38 0.80 0.26 2.82 O2 (Oxygen diatomic) -0.14 -3.62 -4.16 -4.48 -2.97 -0.19 -0.40 -0.95 -1.34 1.74

O3 (Ozone) 2.30 -1.60 -2.15 -2.19 -0.57 2.40 2.17 1.56 1.44 4.24

OCS (Carbonyl sulfide) -0.86 -2.75 -3.02 -3.19 -1.80 -0.93 -0.89 -0.86 -2.18 -0.41 OH (Hydroxyl radical) 1.60 -1.51 -2.13 -2.18 -0.94 2.03 1.80 1.23 0.76 3.46 P (Phosphorus atom) 0.61 -1.30 -1.77 -1.97 -1.11 1.02 0.95 0.67 -0.29 1.21 P2 (Phosphorus diatomic) 0.46 -1.64 -2.04 -2.28 -1.43 0.90 0.73 0.37 -0.58 1.03 PF3 (Phosphorus trifluoride) -1.23 -1.86 -2.17 -2.38 -2.00 -1.33 -1.27 -1.20 -1.80 -1.17 PH3 (Phosphine) -0.52 -1.09 -1.43 -1.71 -1.31 -0.60 -0.56 -0.51 -1.09 -0.55

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S (Sulfur atom) 1.95 -0.58 -1.11 -1.22 -0.27 2.34 2.17 1.74 0.89 2.77 S2 (Sulfur diatomic) 1.45 -1.08 -1.62 -1.75 -0.79 1.75 1.56 1.15 0.34 2.25 Si (Silicon atom) 1.34 -0.98 -1.13 -1.28 -0.63 1.54 1.41 1.13 0.18 1.48 Si2H6 (Disilane) -0.66 -0.89 -1.20 -1.72 -1.12 -0.65 -0.63 -0.58 -1.06 -0.81 SiF2 (Silicon difluoride) 0.07 -1.57 -1.93 -2.06 -1.54 0.24 0.15 -0.08 -0.94 0.22 SiF4 (Silicon tetrafluoride) -0.81 -1.52 -1.98 -2.47 -1.75 -1.00 -0.94 -0.90 -1.28 -0.48 SiH3 (Silyl) 0.82 -0.97 -1.45 -1.63 -0.89 1.21 1.12 0.86 -0.05 1.43 SiH4 (Silane) -0.59 -1.05 -1.37 -1.78 -1.26 -0.64 -0.61 -0.57 -1.15 -0.66 SiO (Silicon monoxide) 0.01 -1.54 -1.90 -1.98 -1.52 0.12 0.06 -0.13 -0.97 0.05 SO2 (Sulfur dioxide) 0.87 -2.12 -2.58 -2.84 -1.62 1.04 0.82 0.33 -0.34 2.02

MAE 1.31 1.67 1.95 1.28 0.24 0.20 0.24 0.80 0.55

MSE -1.27 -1.62 -1.92 -1.22 0.13 0.12 0.00 -0.75 0.34

RMS   1.60 1.97 2.20 1.47 0.39 0.35 0.39 0.87 0.76

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Table S5. Vertical electron affinities (3) [in eV] of the 121 molecules studied. The reference values are calculated by CCSD.

Molecule CCSD LDA PBE M06L B3LYP ωB97 ωB97X ωB97X-D M06-2X M06-HF

Al (Aluminum atom) 0.38 3.32 2.76 2.29 2.11 -0.02 0.11 0.38 1.27 3.65 AlCl3 (Aluminum trichloride) 0.02 2.92 2.22 1.55 1.70 -0.41 -0.32 -0.13 1.00 0.79 Ar (Argon atom) -2.81 -0.31 -0.65 -1.79 -0.92 -3.22 -3.31 -3.07 -1.72 -1.57

B (Boron atom) 0.18 4.36 3.62 2.74 2.68 -0.14 0.12 0.56 1.41 3.91

BCl3 (Borane, trichloro-) -0.25 3.45 2.72 2.37 1.98 -0.69 -0.45 -0.04 0.92 0.32 Be (Beryllium atom) -0.38 2.52 2.02 1.68 1.43 -0.50 -0.46 -0.24 0.53 0.27 BF3 (Borane, trifluoro-) -1.04 1.21 0.78 0.33 0.51 -1.19 -1.29 -1.12 0.15 0.21

C (Carbon atom) 1.16 6.49 5.58 4.77 4.28 0.99 1.37 1.95 2.70 3.43

C2F4 (Tetrafluoroethylene) -1.21 1.15 0.58 0.12 0.30 -1.45 -1.56 -1.39 -0.04 0.03 C2H2 (Acetylene) -2.01 1.04 0.41 -0.01 0.05 -0.85 -0.92 -0.85 -0.05 0.18 C2H2O2 (Ethanedial) 0.63 5.21 4.44 4.04 3.59 0.67 0.94 1.40 2.18 0.74 C2H4 (Ethylene) -1.82 1.79 1.12 0.73 0.37 -0.90 -0.99 -0.87 0.00 0.19 C2H4O (Ethylene oxide) -0.87 0.66 0.40 0.19 0.24 -0.84 -0.93 -0.80 0.09 0.26 C2H4S (Thiirane) -0.79 1.54 0.95 0.61 0.36 -0.86 -0.95 -0.81 0.11 0.27 C2H5N (Aziridine) -0.56 0.88 0.55 0.27 0.33 -0.81 -0.90 -0.77 0.14 0.28 C2H6 (Ethane) -0.63 0.71 0.42 0.15 0.25 -0.88 -0.96 -0.83 0.07 0.22 C2HF3 (Trifluoroethylene) -0.56 1.54 0.77 0.35 0.37 -0.81 -0.89 -0.77 0.16 0.32

C2N2 (Cyanogen) -0.22 4.29 3.55 3.15 2.77 0.00 0.25 0.69 1.45 0.17

C3H4 (Cyclopropene) -1.76 1.79 1.11 0.67 0.35 -0.87 -0.96 -0.84 -0.01 0.18 C3H6 (Cyclopropane) -0.66 0.62 0.33 0.09 0.16 -0.92 -1.00 -0.87 0.02 0.18 C3H8 (Propane) -0.61 0.78 0.47 0.16 0.27 -0.88 -0.96 -0.83 0.10 0.24 C3O2 (Carbon suboxide) -0.66 3.31 2.55 2.18 1.91 -0.70 -0.47 -0.08 0.78 0.23 C4H2 (Diacetylene) -1.24 2.53 1.84 1.45 1.14 -0.76 -0.82 -0.75 0.09 0.25 C4H4O (Furan) -0.74 1.56 0.88 0.55 0.20 -0.83 -0.91 -0.79 0.07 0.26 C4H6 (Cyclobutene) -2.30 1.32 0.66 0.28 0.20 -0.88 -0.96 -0.84 0.06 0.23 C4N2 (2-Butynedinitrile) 0.64 4.72 3.97 3.62 3.29 0.74 0.97 1.35 2.15 0.99 CCl4 (Carbon tetrachloride) -0.39 3.35 2.72 2.54 1.93 -0.77 -0.57 -0.15 0.67 0.16 CF2Cl2 (Difluorodichloromethane) -0.89 2.60 1.92 1.61 1.18 -1.30 -1.26 -0.90 0.06 0.06 CF2O (Carbonic difluoride) -2.39 2.62 1.77 1.21 0.92 -1.41 -1.50 -1.30 0.00 0.06 CF3Br (Bromotrifluoromethane) -0.79 2.73 2.02 1.50 1.38 -1.15 -1.06 -0.71 0.29 0.07 CF3Cl (Methane, chlorotrifluoro-) -1.05 1.98 1.27 0.83 0.58 -1.45 -1.51 -1.29 -0.16 -0.01 CF4 (Carbon tetrafluoride) -1.34 0.48 0.19 -0.12 -0.04 -1.73 -1.86 -1.66 -0.30 -0.18 CFCl3 (Trichloromonofluoromethane) -0.62 3.10 2.45 2.22 1.68 -1.01 -0.83 -0.41 0.45 0.11 CH2CCH2 (Allene) -0.57 1.49 0.86 0.50 0.26 -0.83 -0.92 -0.79 0.09 0.25 CH2CCl2 (Ethene, 1,1-dichloro-) -0.97 2.37 1.69 1.36 1.00 -0.85 -0.94 -0.81 0.12 0.31

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CH2CF2 (Ethene, 1,1-difluoro-) -0.97 1.47 0.76 0.30 0.31 -0.82 -0.91 -0.79 0.12 0.29 CH2CHCHO (Acrolein) -0.46 3.80 3.07 2.72 2.27 -0.41 -0.19 0.21 1.08 0.39 CH2CHCl (Ethene, chloro-) -0.86 2.13 1.45 1.10 0.72 -0.84 -0.93 -0.80 0.08 0.28 CH2CHF (Ethene, fluoro-) -0.87 1.72 1.03 0.66 0.32 -0.85 -0.94 -0.82 0.05 0.26 CH2Cl2 (Methylene chloride) -0.51 2.04 1.43 1.09 0.78 -0.82 -0.89 -0.74 0.24 0.35 CH2CO (Ketene) -0.52 2.84 2.14 1.70 1.29 -0.78 -0.86 -0.73 0.17 0.34 CH2F2 (Methane, difluoro-) -0.59 0.67 0.41 0.26 0.27 -0.80 -0.89 -0.77 0.12 0.30 CH3 (Methyl radical) -0.23 4.07 2.95 2.25 2.19 -0.58 -0.36 0.00 1.23 3.04 CH3CCCH3 (2-Butyne) -0.68 0.83 0.54 0.24 0.35 -0.81 -0.89 -0.76 0.15 0.30 CH3CCH (Propyne) -0.55 0.78 0.50 0.23 0.33 -0.80 -0.88 -0.76 0.13 0.28 CH3CH2Cl (Ethyl chloride) -0.52 1.14 0.68 0.34 0.40 -0.80 -0.88 -0.75 0.19 0.33 CH3CH2OH (Ethanol) -0.54 1.00 0.66 0.33 0.42 -0.80 -0.88 -0.75 0.19 0.31 CH3Cl (Methyl chloride) -0.52 1.35 0.88 0.52 0.51 -0.78 -0.86 -0.72 0.20 0.33 CH3COCl (Acetyl Chloride) -0.91 3.04 2.33 1.91 1.49 -0.73 -0.80 -0.63 0.29 0.44 CH3F (Methyl fluoride) -0.59 0.66 0.42 0.23 0.28 -0.80 -0.89 -0.77 0.11 0.28 CH3NHCH3 (Dimethylamine) -0.56 0.89 0.56 0.24 0.33 -0.83 -0.91 -0.78 0.14 0.28 CH3NO2 (Methane, nitro-) -0.28 3.92 3.17 2.84 2.42 -0.45 -0.22 0.22 0.97 0.50 CH3OCH3 (Dimethyl ether) -0.59 0.82 0.50 0.21 0.31 -0.84 -0.93 -0.79 0.12 0.27 CH3OH (Methyl alcohol) -0.55 1.01 0.67 0.35 0.43 -0.79 -0.87 -0.74 0.19 0.31 CH3SH (Methanethiol) -0.52 1.26 0.84 0.45 0.53 -0.80 -0.88 -0.73 0.22 0.34 CH3SiH3 (Methyl silane) -0.53 1.07 0.67 0.27 0.39 -0.78 -0.85 -0.73 0.15 0.30 CH4 (Methane) -0.63 0.61 0.37 0.14 0.24 -0.85 -0.93 -0.80 0.05 0.21 CHCl3 (Chloroform) -0.55 2.66 2.03 1.75 1.27 -0.89 -0.94 -0.72 0.25 0.32 CHF3 (Methane, trifluoro-) -0.61 0.67 0.40 0.23 0.26 -0.83 -0.92 -0.80 0.10 0.27 CHONH2 (Formamide) -0.36 1.51 0.82 0.49 0.61 -0.61 -0.70 -0.56 0.37 0.52

Cl (Chlorine atom) 3.51 8.11 7.73 7.32 6.76 3.64 4.00 4.56 5.09 3.31

Cl2 (Chlorine diatomic) 0.64 4.91 4.22 3.96 3.41 0.61 0.85 1.31 1.98 0.59 ClF (Chlorine monofluoride) 0.34 5.16 4.43 4.00 3.48 0.51 0.74 1.22 1.85 0.45 ClF3 (Chlorine trifluoride) 1.19 5.62 4.84 4.52 4.11 1.14 1.38 1.84 2.54 1.04 ClO (Monochlorine monoxide) 2.04 6.34 5.95 5.57 4.95 1.99 2.23 2.73 3.51 1.76 CO (Carbon monoxide) -1.49 2.72 2.01 1.54 1.13 -1.57 -1.44 -1.04 -0.22 -0.38 CO2 (Carbon dioxide) -0.84 1.33 0.90 0.33 0.60 -1.21 -1.27 -1.08 0.13 0.20 CS (Carbon monosulfide) -0.08 4.06 3.40 3.12 2.62 -0.11 0.12 0.55 1.33 0.05 CS2 (Carbon disulfide) 0.07 3.46 2.83 2.60 2.23 -0.10 0.06 0.38 1.19 0.22 F (Fluorine atom) 3.21 10.80 9.30 7.66 7.55 4.05 4.22 4.80 4.74 2.21 F2 (Fluorine diatomic) 0.42 6.70 5.81 5.08 4.52 1.27 1.47 2.00 2.22 0.13 F2O (Difluorine monoxide) -0.38 5.13 4.27 3.62 3.19 -0.06 0.18 0.70 1.11 -0.50 FCN (Cyanogen fluoride) -0.69 2.07 1.53 0.82 1.05 -1.04 -1.07 -0.84 0.35 0.31

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H (Hydrogen atom) 0.74 2.55 0.70 95.09 0.04 1.61 1.49 1.45 15.29 52.59 H2CO (Formaldehyde) -0.55 3.41 2.69 2.25 1.78 -0.77 -0.85 -0.44 0.43 0.32 H2CS (Thioformaldehyde) 0.26 4.28 3.62 3.39 2.85 0.20 0.41 0.81 1.67 0.39

H2O (Water) -0.58 1.24 0.93 0.49 0.68 -0.84 -0.92 -0.75 0.28 0.38

H2O2 (Hydrogen peroxide) -0.92 2.40 1.68 0.96 0.73 -0.92 -1.02 -0.85 0.21 0.32 H2S (Hydrogen sulfide) -0.50 1.21 0.84 0.36 0.58 -0.78 -0.84 -0.70 0.22 0.37 HCCCN (Cyanoacetylene) -0.36 3.39 2.67 2.29 1.93 -0.59 -0.47 -0.08 0.75 0.46 HCCF (Fluoroacetylene) -0.56 1.13 0.73 0.32 0.42 -0.79 -0.87 -0.75 0.12 0.27 HCl (Hydrogen sulfide) -0.52 1.53 1.10 0.60 0.74 -0.78 -0.84 -0.69 0.25 0.36 HCN (Hydrogen cyanide) -0.49 1.80 1.13 0.68 0.38 -0.67 -0.75 -0.65 0.14 0.36 HCO (Formyl radical) -0.05 4.31 3.46 3.20 2.72 -0.18 0.09 0.55 1.52 1.64 HCOOH (Formic acid) -0.59 2.28 1.53 1.06 0.69 -0.82 -0.90 -0.77 0.15 0.28 He (Helium atom) -2.63 -1.24 -1.34 -1.23 -1.36 -2.94 -3.08 -2.80 -1.42 -1.26 HF (Hydrogen fluoride) -0.64 1.26 0.96 0.51 0.71 -0.88 -0.98 -0.79 0.29 0.38 Li (Lithium atom) 0.62 2.17 1.35 1.03 1.52 -0.28 -0.27 -0.20 0.27 23.96 Mg (Magnesium atom) -0.24 1.76 1.34 0.97 0.92 -0.39 -0.40 -0.30 0.34 0.35 N (Nitrogen atom) -0.34 4.91 4.13 3.12 3.16 -0.17 0.00 0.47 1.69 3.19 N2 (Nitrogen diatomic) -2.32 2.69 1.96 1.49 1.01 -2.05 -1.79 -1.29 -0.63 -0.81 N2H4 (Hydrazine) -0.46 1.31 0.95 0.53 0.68 -0.75 -0.83 -0.67 0.36 0.45 N2O (Nitrous oxide) -2.05 2.31 1.56 1.07 0.84 -1.64 -1.71 -1.37 -0.25 -0.17 Na (Sodium atom) 0.54 2.36 1.00 0.82 1.71 -0.25 -0.25 -0.21 0.21 18.24 NaCl (Sodium Chloride) 0.64 2.49 2.27 1.90 2.03 0.40 0.31 0.47 1.67 1.68 Ne (Neon atom) -5.32 -2.06 -2.33 -3.70 -2.65 -5.78 -5.79 -5.55 -3.78 -3.99 NF3 (Nitrogen trifluoride) -2.04 1.81 1.02 0.26 0.06 -2.18 -2.27 -2.01 -0.65 -0.55

NH (Imidogen) 0.14 5.39 4.32 3.50 3.31 0.09 0.34 0.80 1.80 1.80

NH2 (Amino radical) 0.54 5.75 4.54 3.54 3.45 0.32 0.60 1.07 1.95 1.17 NH3 (Ammonia) -0.57 1.02 0.73 0.35 0.52 -0.83 -0.91 -0.76 0.20 0.33 NO (Nitric oxide) -0.43 4.57 4.24 3.79 3.18 -0.06 0.25 0.83 1.45 -0.36 NO2 (Nitrogen dioxide) 1.47 5.95 5.06 4.59 4.35 1.40 1.66 2.11 3.01 1.82

O (Oxygen atom) 1.24 7.70 6.49 4.97 5.13 1.64 1.87 2.41 3.04 1.64

O2 (Oxygen diatomic) -0.14 5.42 4.51 3.96 3.44 0.17 0.49 1.05 1.61 -0.30

O3 (Ozone) 2.30 6.98 6.21 6.01 5.62 2.67 2.94 3.40 4.11 2.34

OCS (Carbonyl sulfide) -0.86 2.62 1.93 1.54 1.23 -1.26 -1.20 -0.81 0.02 0.11 OH (Hydroxyl radical) 1.60 7.79 6.46 5.14 5.04 1.67 1.93 2.47 2.94 1.22 P (Phosphorus atom) 0.61 4.59 3.74 3.41 3.25 0.65 0.92 1.25 2.54 4.19 P2 (Phosphorus diatomic) 0.46 4.01 3.42 3.23 2.79 0.46 0.63 0.96 1.74 0.68 PF3 (Phosphorus trifluoride) -1.23 1.51 0.86 0.39 0.32 -1.52 -1.57 -1.36 -0.27 -0.20 PH3 (Phosphine) -0.52 1.01 0.66 0.26 0.45 -0.79 -0.86 -0.72 0.17 0.34

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S (Sulfur atom) 1.95 6.61 5.64 5.26 4.89 2.03 2.36 2.80 3.57 2.61 S2 (Sulfur diatomic) 1.45 5.28 4.51 4.33 3.86 1.32 1.55 1.94 2.81 1.57

Si (Silicon atom) 1.34 4.52 4.36 4.04 3.51 0.89 1.13 1.55 2.39 4.12

Si2H6 (Disilane) -0.66 1.08 0.65 0.23 0.37 -0.84 -0.91 -0.78 0.14 0.35 SiF2 (Silicon difluoride) 0.07 3.64 3.01 2.73 2.40 -0.09 0.10 0.44 1.34 0.58 SiF4 (Silicon tetrafluoride) -0.81 1.75 1.19 0.60 0.78 -1.16 -1.22 -1.02 0.27 0.27

SiH3 (Silyl) 0.82 4.41 3.54 3.38 3.01 1.07 1.19 1.30 2.85 6.34

SiH4 (Silane) -0.59 0.78 0.46 0.14 0.29 -0.83 -0.91 -0.78 0.08 0.29 SiO (Silicon monoxide) 0.01 3.45 2.87 2.55 2.26 -0.14 0.03 0.35 1.24 0.58 SO2 (Sulfur dioxide) 0.87 5.13 4.42 4.18 3.76 0.95 1.20 1.64 2.44 1.09

MAE 3.15 2.53 2.87 1.96 0.29 0.34 0.42 1.26 1.80

MSE 3.15 2.53 2.87 1.95 -0.07 -0.03 0.24 1.25 1.75

RMS   3.44 2.81 8.90 2.15 0.37 0.41 0.56 1.80 5.57

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Table S6. Fundamental gaps (1) [in eV] of the 121 molecules studied. The reference values are calculated by CCSD.

Molecule CCSD LDA PBE M06L B3LYP ωB97 ωB97X ωB97X-D M06-2X M06-HF

Al (Aluminum atom) 5.55 5.44 5.49 5.55 5.56 5.69 5.67 5.62 5.47 5.50 AlCl3 (Aluminum trichloride) 12.23 10.70 10.57 11.47 11.08 12.48 12.20 11.84 11.79 11.83 Ar (Argon atom) 18.49 18.56 18.29 18.93 18.36 18.67 18.62 18.51 18.32 17.93

B (Boron atom) 8.02 7.96 8.05 8.34 8.27 8.27 8.27 8.21 8.06 7.96

BCl3 (Borane, trichloro-) 12.22 10.98 10.82 11.32 11.29 12.13 11.92 11.70 11.82 12.09 Be (Beryllium atom) 9.67 9.09 8.99 9.14 9.18 9.35 9.22 9.08 9.36 9.45 BF3 (Borane, trifluoro-) 17.38 15.43 15.04 15.33 15.84 16.69 16.53 16.34 16.88 17.70 C (Carbon atom) 10.02 9.92 9.95 10.09 10.17 10.16 10.16 10.13 10.05 10.06 C2F4 (Tetrafluoroethylene) 11.98 11.23 10.86 11.67 11.29 11.68 11.71 11.62 11.83 12.59 C2H2 (Acetylene) 13.33 12.34 11.79 11.64 11.79 11.91 11.94 11.92 11.99 13.50 C2H2O2 (Ethanedial) 10.23 8.96 8.94 9.22 9.41 9.91 9.82 9.66 9.87 10.35 C2H4 (Ethylene) 12.32 11.57 11.08 11.08 11.16 11.12 11.14 11.29 11.27 12.24 C2H4O (Ethylene oxide) 11.54 11.24 10.85 11.10 11.04 11.31 11.27 11.19 11.55 11.77

C2H4S (Thiirane) 9.80 9.74 9.37 9.63 9.51 9.67 9.67 9.62 9.84 9.91

C2H5N (Aziridine) 10.35 10.33 9.98 10.25 10.14 10.40 10.36 10.27 10.46 10.34 C2H6 (Ethane) 13.46 12.49 12.33 12.88 12.75 13.25 13.18 13.02 13.14 13.14 C2HF3 (Trifluoroethylene) 11.05 10.80 10.35 11.50 10.68 10.81 10.84 10.79 12.04 12.36 C2N2 (Cyanogen) 13.80 13.18 12.98 13.11 13.03 13.33 13.26 13.20 13.47 13.70 C3H4 (Cyclopropene) 11.66 10.52 10.15 11.18 10.27 10.43 10.43 10.36 10.49 11.79 C3H6 (Cyclopropane) 11.56 11.58 11.18 11.48 11.31 11.59 11.58 11.49 11.57 11.31 C3H8 (Propane) 12.83 11.61 11.47 12.00 11.99 12.63 12.53 12.33 12.42 12.52 C3O2 (Carbon suboxide) 11.35 11.70 11.51 11.61 11.43 11.69 11.72 11.70 11.77 11.49 C4H2 (Diacetylene) 11.47 10.83 10.57 10.86 10.70 10.68 10.67 10.99 11.18 11.45

C4H4O (Furan) 9.68 9.71 9.25 9.39 9.30 9.51 9.50 9.45 10.51 10.75

C4H6 (Cyclobutene) 11.86 10.18 9.80 10.22 9.88 10.07 10.08 10.03 10.67 11.97 C4N2 (2-Butynedinitrile) 11.47 10.55 10.42 10.57 10.57 10.94 10.87 10.78 11.05 11.33 CCl4 (Carbon tetrachloride) 12.29 10.42 10.31 10.87 10.93 12.35 12.07 11.66 11.88 12.64 CF2Cl2 (Difluorodichloromethane) 13.32 12.16 11.92 12.55 12.41 13.50 13.33 13.04 13.16 13.23 CF2O (Carbonic difluoride) 15.97 14.34 13.92 14.42 14.25 14.70 14.66 14.57 15.18 15.58 CF3Br (Bromotrifluoromethane) 12.83 12.42 12.10 12.29 12.42 12.81 12.76 12.64 12.69 12.99 CF3Cl (Methane, chlorotrifluoro-) 14.15 13.63 13.29 13.92 13.74 14.22 14.18 14.07 14.21 14.07 CF4 (Carbon tetrafluoride) 18.11 15.95 15.56 16.43 16.54 17.35 17.31 17.12 17.74 18.69 CFCl3 (Trichloromonofluoromethane) 12.64 11.06 10.90 11.56 11.44 12.75 12.50 12.14 12.34 12.95 CH2CCH2 (Allene) 10.72 10.86 10.45 10.66 10.53 10.70 10.71 10.67 11.07 10.60 CH2CCl2 (Ethene, 1,1-dichloro-) 10.97 10.51 9.90 10.60 10.13 10.55 10.49 10.37 10.48 10.42

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CH2CF2 (Ethene, 1,1-difluoro-) 11.64 11.22 10.74 10.84 10.96 11.09 11.11 11.07 11.24 12.52 CH2CHCHO (Acrolein) 10.58 9.87 9.74 9.92 9.93 10.16 10.10 10.05 10.21 10.43 CH2CHCl (Ethene, chloro-) 10.97 11.11 10.22 11.11 10.36 10.66 10.62 10.53 11.37 11.57 CH2CHF (Ethene, fluoro-) 11.39 11.25 10.78 11.78 11.81 11.00 11.02 10.97 12.14 12.41 CH2Cl2 (Methylene chloride) 12.17 11.19 10.99 11.54 11.58 12.29 12.17 11.97 12.10 12.05 CH2CO (Ketene) 10.20 10.54 10.12 10.17 10.17 10.32 10.33 10.28 10.68 11.00 CH2F2 (Methane, difluoro-) 14.27 13.11 12.80 13.19 13.43 13.78 13.75 13.62 14.04 14.52 CH3 (Methyl radical) 9.95 9.73 9.96 10.08 9.91 9.94 9.90 9.87 9.85 9.66 CH3CCCH3 (2-Butyne) 10.32 9.92 9.60 9.77 10.34 10.09 10.08 10.01 10.20 10.56 CH3CCH (Propyne) 10.94 10.94 10.55 10.72 10.67 10.85 10.85 10.79 10.90 11.23 CH3CH2Cl (Ethyl chloride) 11.64 11.64 10.98 11.58 11.31 11.70 11.66 11.56 11.67 11.44 CH3CH2OH (Ethanol) 11.29 10.75 10.50 10.87 10.88 11.27 11.21 11.08 11.29 11.30 CH3Cl (Methyl chloride) 11.90 11.69 11.41 11.79 11.64 11.96 11.93 11.85 11.96 12.67 CH3COCl (Acetyl Chloride) 12.14 11.28 10.99 11.28 11.23 11.62 11.57 11.45 11.84 12.77 CH3F (Methyl fluoride) 14.04 13.41 13.10 13.39 13.51 13.80 13.76 13.66 13.92 14.11 CH3NHCH3 (Dimethylamine) 9.55 9.41 9.12 9.37 9.32 9.64 9.60 9.50 9.60 9.62 CH3NO2 (Methane, nitro-) 11.69 11.20 10.93 11.19 11.39 12.18 12.11 11.94 12.06 12.47 CH3OCH3 (Dimethyl ether) 10.69 10.39 10.09 10.38 10.36 10.70 10.66 10.56 10.69 10.63 CH3OH (Methyl alcohol) 11.57 11.35 11.02 11.21 11.28 11.57 11.53 11.43 11.62 11.68 CH3SH (Methanethiol) 9.90 9.86 9.56 9.97 9.72 9.99 9.99 9.94 9.97 9.75 CH3SiH3 (Methyl silane) 12.26 11.75 11.57 12.02 11.94 12.82 12.74 12.57 12.19 12.41 CH4 (Methane) 15.01 14.67 14.40 14.79 14.66 14.86 14.85 14.78 14.90 14.89 CHCl3 (Chloroform) 12.18 10.90 10.74 11.32 11.25 12.30 12.10 11.80 11.97 12.08 CHF3 (Methane, trifluoro-) 15.58 14.32 13.95 14.29 14.65 15.04 14.99 15.77 15.29 15.90 CHONH2 (Formamide) 10.67 10.82 10.40 11.59 10.52 10.71 10.67 10.58 12.01 12.26

Cl (Chlorine atom) 9.33 9.42 9.32 9.28 9.40 9.39 9.38 9.39 9.38 9.44

Cl2 (Chlorine diatomic) 11.00 10.41 10.30 10.73 10.52 10.96 10.87 10.79 10.94 11.03 ClF (Chlorine monofluoride) 12.47 11.96 11.79 12.20 12.06 12.29 12.28 12.27 12.54 12.73 ClF3 (Chlorine trifluoride) 12.05 11.05 10.93 11.28 11.37 11.70 11.69 11.63 12.01 12.47 ClO (Monochlorine monoxide) 8.99 8.88 8.80 8.92 8.97 9.00 9.01 9.01 8.97 9.08 CO (Carbon monoxide) 15.49 15.08 14.77 14.83 15.18 15.71 15.64 15.37 15.44 15.98 CO2 (Carbon dioxide) 14.61 14.73 14.31 14.89 14.47 14.90 14.84 14.75 14.89 15.02 CS (Carbon monosulfide) 11.43 11.37 11.19 11.22 11.33 12.67 12.59 11.39 11.43 11.65 CS2 (Carbon disulfide) 9.91 10.21 10.00 10.27 9.91 11.23 9.85 9.94 10.09 9.94 F (Fluorine atom) 14.08 13.89 14.00 14.13 14.20 14.02 14.07 14.13 14.22 14.16 F2 (Fluorine diatomic) 15.66 14.86 14.68 15.07 15.11 15.19 15.26 15.29 15.74 16.15 F2O (Difluorine monoxide) 13.93 12.93 12.77 13.20 13.32 13.56 13.59 13.58 14.08 14.63 FCN (Cyanogen fluoride) 14.21 14.12 13.73 14.22 13.87 14.17 14.16 14.10 14.27 14.37

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H (Hydrogen atom) 12.86 12.19 12.90 13.12 12.76 13.00 12.91 12.87 12.96 12.89 H2CO (Formaldehyde) 11.43 11.44 11.24 11.50 11.30 11.84 11.42 11.66 11.82 12.08 H2CS (Thioformaldehyde) 9.05 9.00 8.83 8.98 8.86 8.84 8.87 8.91 9.04 9.21 H2O (Water) 13.21 13.69 13.18 13.24 13.20 13.41 13.35 13.27 13.37 13.41 H2O2 (Hydrogen peroxide) 12.71 12.05 11.70 12.06 12.21 12.47 12.43 12.32 12.77 13.21 H2S (Hydrogen sulfide) 10.88 11.07 10.73 11.12 10.81 11.03 11.03 10.99 11.02 10.83 HCCCN (Cyanoacetylene) 12.07 11.82 11.56 11.74 11.68 12.04 11.90 11.91 12.14 12.38 HCCF (Fluoroacetylene) 11.90 11.98 11.51 12.74 11.65 11.76 11.79 11.76 13.10 13.37 HCl (Hydrogen sulfide) 13.21 13.42 13.06 13.42 13.14 13.37 13.36 13.31 13.38 13.28 HCN (Hydrogen cyanide) 14.11 14.65 14.09 14.77 14.05 14.03 14.04 14.01 15.09 15.40 HCO (Formyl radical) 9.73 9.58 9.72 9.81 9.93 9.96 9.95 9.92 9.87 9.98 HCOOH (Formic acid) 11.85 11.92 11.44 12.27 11.63 11.88 11.84 11.74 12.83 13.27 He (Helium atom) 27.20 26.83 26.79 27.32 27.31 27.30 27.26 27.21 27.19 27.02 HF (Hydrogen fluoride) 16.76 17.35 16.76 16.71 16.78 16.94 16.85 16.77 16.86 16.87

Li (Lithium atom) 4.72 4.95 5.07 4.58 5.07 4.93 4.82 4.86 4.89 5.43

Mg (Magnesium atom) 7.77 7.85 7.63 7.73 7.80 7.96 7.89 7.69 8.03 7.98 N (Nitrogen atom) 14.81 14.65 14.45 14.89 14.43 14.60 14.65 14.69 14.67 14.34 N2 (Nitrogen diatomic) 18.03 17.30 17.03 17.24 17.29 17.79 17.77 17.62 17.77 18.89 N2H4 (Hydrazine) 10.30 9.88 9.65 10.15 9.94 10.29 10.24 10.12 10.33 10.46 N2O (Nitrous oxide) 14.82 14.32 13.87 14.74 13.92 14.25 14.23 14.18 14.83 14.72

Na (Sodium atom) 4.14 4.82 4.81 4.02 4.85 4.34 4.31 4.45 4.61 5.09

NaCl (Sodium Chloride) 8.48 8.92 8.52 8.83 8.51 8.61 8.63 8.60 8.67 8.37 Ne (Neon atom) 26.78 27.15 26.59 26.65 26.61 27.10 26.90 26.81 26.38 26.25 NF3 (Nitrogen trifluoride) 15.77 14.62 14.29 14.97 14.86 15.39 15.37 15.25 15.41 15.56 NH (Imidogen) 13.30 13.15 13.23 13.39 13.21 13.26 13.27 13.29 13.30 13.27 NH2 (Amino radical) 11.42 11.19 11.33 11.34 11.50 11.51 11.43 11.40 11.29 11.20 NH3 (Ammonia) 11.42 11.77 11.34 11.44 11.41 11.59 11.55 11.48 11.56 11.54 NO (Nitric oxide) 10.22 10.17 10.03 10.18 10.33 10.29 10.33 10.33 10.38 10.66 NO2 (Nitrogen dioxide) 10.10 9.88 9.97 10.22 10.26 10.25 10.27 10.30 10.34 10.55 O (Oxygen atom) 12.22 12.01 12.29 12.39 12.46 12.33 12.31 12.33 12.27 12.43 O2 (Oxygen diatomic) 12.75 12.67 12.66 13.07 12.97 12.95 12.99 13.03 13.13 13.14 O3 (Ozone) 10.99 10.85 10.70 10.69 10.70 10.74 10.73 10.74 10.90 11.26 OCS (Carbonyl sulfide) 12.07 12.53 12.24 12.53 12.01 12.26 12.26 12.23 12.59 12.49 OH (Hydroxyl radical) 11.36 11.21 11.33 11.41 11.49 11.41 11.41 11.42 11.43 11.30 P (Phosphorus atom) 9.83 9.53 9.61 9.96 9.43 9.67 9.58 9.54 9.46 9.20 P2 (Phosphorus diatomic) 9.98 10.16 9.93 10.01 9.82 9.63 10.19 10.20 9.90 9.83 PF3 (Phosphorus trifluoride) 12.97 12.48 12.09 12.45 12.51 12.92 12.90 12.79 12.80 13.01 PH3 (Phosphine) 11.05 11.10 10.83 11.27 10.97 11.13 11.15 11.12 11.07 10.69

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S (Sulfur atom) 8.26 8.22 8.27 8.23 8.35 8.36 8.34 8.33 8.32 8.33 S2 (Sulfur diatomic) 8.07 8.00 8.10 8.30 8.15 8.32 8.24 8.19 8.16 8.05

Si (Silicon atom) 6.75 6.78 6.70 6.67 6.77 6.85 6.84 6.80 6.72 6.76

Si2H6 (Disilane) 11.22 10.85 10.58 11.18 10.83 11.16 11.15 11.08 11.10 11.03 SiF2 (Silicon difluoride) 11.03 10.81 10.52 10.75 10.79 10.97 10.93 10.85 10.86 10.84 SiF4 (Silicon tetrafluoride) 17.72 15.23 14.91 15.88 15.87 16.98 16.85 16.56 17.18 18.25

SiH3 (Silyl) 8.02 7.80 8.01 8.13 7.99 7.98 7.97 7.96 8.08 7.96

SiH4 (Silane) 13.45 12.69 12.52 13.23 12.90 13.41 13.33 13.18 13.17 13.12 SiO (Silicon monoxide) 11.50 11.35 11.07 11.25 11.25 11.52 11.48 11.40 11.51 11.72 SO2 (Sulfur dioxide) 11.71 11.50 11.31 11.43 11.42 11.54 11.53 11.52 11.67 11.85

MAE 0.51 0.65 0.44 0.45 0.28 0.26 0.30 0.27 0.33

MSE -0.39 -0.63 -0.29 -0.39 -0.09 -0.14 -0.22 -0.02 0.18

RMS   0.71 0.88 0.62 0.62 0.42 0.41 0.44 0.40 0.46

Figure

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References

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