Supplementary material. Calculated and experimental free energies of solvation for selected neutrals (kcal/mol)

A = 
B = 
C = 
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                              AM1-SM1	       exp.   AM1-SM1a

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A B C C C ________________________________________________________________________ ethane 0.0 0.2 0.2 1.8 0.8

propane 0.0 0.3 0.3 2.0 1.0

n-butane 0.1 0.2 0.3 2.1 1.2

n-hexane 0.2 0.3 0.5 2.5 1.5

n-octane 0.3 0.3 0.6 2.9 1.9

2-methylpropane 0.1 0.3 0.4 2.3 1.1

cyclopentane 0.0 0.3 0.3 1.2 1.0

cyclohexane 0.2 0.1 0.4 1.2 1.4

propene -0.3 0.7 0.3 1.3 0.5

(E)-2-pentene -0.3 0.5 0.2 1.3 0.9

2-methylpropene 0.4 0.7 0.3 1.2 0.6

cyclopentene -0.5 0.6 0.1 0.6 0.6

o-xylene -1.9 1.1 -0.8 -0.9 -0.7

m-xylene -1.9 1.1 -0.8 -0.8 -0.7

anthracene -4.9 2.3 -2.6 -4.2 -3.3

ethyne -1.8 1.4 -0.4 -0.0 -1.2

propyne -2.1 1.2 -0.9 -0.3 -1.1

1-pentyne -1.8 1.1 -0.7 0.0 -0.7

1-hexyne -1.8 1.1 -0.7 0.3 -0.6

butenyne -2.5 1.6 -1.0 0.0 -1.7

diethyl ether -0.9 -0.2 -1.1 -1.6 -0.7

2-methoxypropane -0.9 -0.4 -1.3 -2.0 -1.5

2-methoxy-2-methylpropane-0.8 -0.2 -1.0 -2.2 -1.0

1,2-dimethoxyethane -1.7 -1.4 -3.1 -4.8 -4.2

butanoic acid -1.5 -3.4 -4.9 -6.4 -5.7

methyl formate -2.4 -2.9 -5.3 -2.8 -5.2

propanenitrile -1.8 -3.8 -5.6 -3.9 -3.9

butanenitrile -1.6 -3.8 -5.4 -3.7 -3.5

acetaldehyde -3.1 -2.4 -5.4 -3.5 -3.8

propanone -3.3 -2.1 -5.4 -3.9 -3.7

2-pentanone -2.3 -1.3 -3.6 -3.5 -2.1

3-pentanone -2.4 -1.3 -3.7 -3.4 -2.2

4-heptanone -2.1 -1.2 -3.3 -2.9 -1.6

5-nonanone -2.2 -1.2 -3.5 -2.7 -1.5

acetophenone -4.3 -0.8 -5.2 -4.6 -4.4

methanol -1.0 -1.8 -2.8 -5.1 -5.4

1-propanol -0.9 -1.4 -2.3 -4.8 -4.1

1-butanol -0.8 -1.0 -1.8 -4.5 -3.1

isopropanol -0.9 --1.4 -2.2 -4.8 -3.8

phenol -2.5 -0.6 -3.1 -6.6 -5.8

allyl alcohol -1.3 -1.2 -2.5 -5.0 -4.8

2-methoxyethanol -1.4 -2.4 -3.9 -6.8 -6.7

m-hydroxybenzaldehyde -4.2 -3.0 -7.1 -9.5 -8.7

p-hydroxybenzaldehyde -4.4 -2.9 -7.3 -10.5 -9.0

1,2-ethanediol -1.6 -3.0 -4.6 -7.7 -8.6

ethylamine -1.3 -1.3 -2.5 -4.5 -4.5

1-propylamine -1.2 -1.2 -2.5 -4.4 -5.0

1-butanamine -1.2 -1.2 -2.4 -4.3 -4.4

dimethylamine -2.5 -0.6 -3.1 -4.3 -4.4

azetidine -1.5 -0.9 -2.4 -5.6 -5.0

pyrrolidine -2.0 -0.7 -2.6 -5.5 -3.8

2,6-dimethylpyridine -2.8 -0.1 -2.9 -4.6 -2.4

aniline -2.5 -0.2 -2.3 -4.9 -4.8

piperazine -3.6 -1.3 -4.9 -7.4 -7.6

1-methylpiperazine -4.4 -0.9 -5.3 -7.8 -6.9

2-methoxyethanamine -2.2 -2.0 -4.2 -6.6 -7.5

morpholine -2.8 -1.7 -4.5 -7.2 -6.8

nitroethane -1.8 -5.0 -6.8 -3.7 -3.7

1-nitropropane -1.5 -4.9 -6.4 -3.3 -3.3

2-nitropropane -1.9 -4.4 -6.3 -3.1 -3.5

1-methyl-2-nitrobenzene -3.5 -3.6 -7.0 -3.6 -4.7

dimethyl sulfide -0.1 -0.6 -0.7 -1.4 -1.5

thiophenol -3.2 0.0 -3.2 -2.6 -3.9

thioanisole -3.5 0.4 -3.1 -2.7 -4.1

fluoromethane -1.4 1.2 -0.2 -0.2 0.2

trifluoromethane -3.1 2.7 -0.4 0.8 0.0

2,2,2-trifluoroethanol -3.2 0.9 -2.3 -4.3 -4.1

1,1,1-trifluoropropan-2-ol-2.3 0.6 -1.7 -4.2 -3.4

methyl chloride -1.0 0.0 -0.9 -0.6 -0.8

ethyl chloride -1.0 0.0 -1.0 -0.6 -0.7

isopropyl chloride -1.1 0.1 -1.1 -0.3 -0.5

vinyl chloride -0.8 0.5 -0.4 -0.6 -0.5

chlorobenzene -2.0 0.9 -1.1 -1.1 -1.4

1,2-dichloroethane -0.9 -0.2 -1.2 -1.7 -1.0

(E)-1,2-dichloroethene -0.5 0.1 -0.5 -0.8 -0.7

trichloroethene -0.6 -0.2 -0.7 -0.4 -1.0

1,1,1-trichloroethane -0.9 -0.3 -1.2 -0.3 -1.1

tetrachloroethene -0.3 -0.4 -0.7 0.1 -0.9

chlorodifluoromethane -2.1 1.6 -0.5 -0.5 -0.3

2-chloro-1,1,1- trifluoroethane -2.2 2.1 -0.1 0.1 0.4

bromoethane -0.4 -0.6 -1.0 -0.7 -0.6

2-bromopropane -0.5 -0.5 -1.0 -0.5 -0.4

bromobenzene -2.3 0.3 -2.0 -1.5 -2.2

4-bromophenol -2.6 -1.5 -4.1 -7.1 -6.9

dibromomethane -0.2 -1.4 -1.7 -2.1 -1.5

1,4-dibromobenzene -2.4 -0.5 -2.9 -2.3 -3.2

tribromomethane -0.2 -2.0 -2.3 -2.1 -2.1

bromotrifluoromethane -1.5 1.6 0.2 1.8 0.6

1-bromo-2-chloroethane -0.7 -0.8 -1.5 -2.0 -1.2

iodomethane -0.1 -0.7 -0.7 -0.9 --1.0

1-iodopropane 0.0 -0.6 -0.6 -0.6 -0.5

2-iodopropane 0.0 -0.5 -0.5 -0.5 -0.4

iodobutane 0.1 -0.6 -0.5 -0.3 -0.3

water -1.2 -2.9 -4.0 -6.3 -8.6

hydrogen sulfide -0.2 -1.5 -1.7 -0.7 -0.7

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