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. 2014 Apr 1;10(7):2802–2812. doi: 10.1021/ct500016d

Table 2. Comparison of Previously Published and Recomputed Free Energies of Hydration (kcal/mol) Using 1.14*CM1A Charges.

molecule name molecular formula 10-DWSa 21-SOSb exptl.c
methanol CH3OH –2.67 ± 0.15 –3.09 ± 0.08 –5.10
chloromethane CH3Cl 0.72 ± 0.11 0.87 ± 0.09 –0.55
methylamine CH3NH2 –5.48 ± 0.14 –5.12 ± 0.09 –4.56
ethane CH3CH3 2.55 ± 0.11 2.92 ± 0.09 1.83
methanethiol CH3SH 1.24 ± 0.11 0.56 ± 0.08 –1.24
dimethyl ether CH3OCH3 –1.26 ± 0.15 –0.90 ± 0.10 –1.91
acetonitrile CH3CN –3.21 ± 0.14 –2.59 ± 0.10 –3.89
dimethylamine (CH3)2NH –3.34 ± 0.17 –3.20 ± 0.10 –4.30
propane CH3CH2CH3 3.07 ± 0.12 3.30 ± 0.09 1.96
acetone CH3COCH3 –2.96 ± 0.16 –1.91 ± 0.10 –3.81
acetic acid CH3COOH –6.34 ± 0.17 –5.81 ± 0.11 –6.70
methyl acetate CH3COOCH3 –4.35 ± 0.20 –3.27 ± 0.13 –3.32
acetamide CH3CONH2 –10.24 ± 0.19 –10.14 ± 0.12 –9.71d
(Z)-N-methylacetamide CH3CONHCH3 –9.48 ± 0.23 –9.62 ± 0.14 –10.08d
(E)-N-methylacetamide CH3CONHCH3 –9.13 ± 0.21 –8.34 ± 0.14 –10.08d
N,N-dimethylacetamide CH3CON(CH3)2 –9.30 ± 0.28 –8.18 ± 0.16 –8.55d
nitroethane CH3CH2NO2 –6.37 ± 0.14 –6.35 ± 0.14 –3.71
benzene C6H6 –1.41 ± 0.23 –1.14 ± 0.17 –0.86
chlorobenzene C6H5Cl –0.93 ± 0.24 –0.48 ± 0.17 –1.12
toluene C6H5CH3 –1.58 ± 0.24 –1.21 ± 0.17 –0.89
trifluorotoluene C6H5CF3 –0.51 ± 0.24 0.17 ± 0.18 –0.25
phenol C6H5OH –5.42 ± 0.24 –5.65 ± 0.17 –6.62
anisole C6H5OCH3 –2.70 ± 0.26 –2.81 ± 0.19 –2.46
aniline C6H5NH2 –7.57 ± 0.25 –7.30 ± 0.18 –5.49
pyridine C5H5N –3.15 ± 0.24 –3.08 ± 0.18 –4.70
mean unsigned error   1.03 1.06  
a

From ref (13): 8M/8M gas-phase and 10M/20–40M aqueous-phase configurations.

b

This work: 5M/5M gas-phase and 15M/30M aqueous-phase configurations.

c

ref (50).

d

ref (51).