Accuracy

h2so3   2168 H2SO3

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    #  Species Formula
  2158 1-Methyl-4-(1-methyl-ethenylsulfonyl) benzeneC10H12O2S
  2159 2-Butenyl p-tolyl sulfoneC11H14O2S
  2160 2-Methyl-2-propenyl p-tolyl sulfoneC11H14O2S
  2161 3-Butenyl p-tolyl sulfoneC11H14O2S
  2162 Diphenyl sulfoneC12H10O2S
  2163 CysteineC3H7NO2S
  2164 MethionineC5H11NO2S
  2165 Sulfur trioxide (Geo)O3S
  2166 Sulfur trioxideO3S
  2167 HOSO2(-)HO3S
  2168 H2SO3 H2O3S
  2169 Dimethyl sulfiteC2H6O3S
  2170 Dimethyl sulfite (Geo)C2H6O3S
  2171 (CH3O)(C2H5O)SOC3H8O3S
  2172 Diethyl sulfiteC4H10O3S
  2173 Dipropyl sulfiteC6H14O3S
  2174 Di-n-butyl sulfiteC8H18O3S
  2175 Li(I)O3N (FOBHEJ) (Geo)H18LiC10NO3S
  2176 Li(I)O3N (FOBHEJ)H18LiC10NO3S
  2177 Sulfuric acid (Geo)H2O4S
  2178 Sulfuric acidH2O4S


ΔHf: -127.0 kcal/mol,     REF: P. Winget, A.H.C. Horn, C. Seloki, B. Martin, T. Clark, J. Mol. Model. 9, 408 (2003).
  
 PM7
H2SO3
 H=-127.0 HR=WHSMC03
  S     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  O     1.65847472 +1    0.0000000 +0    0.0000000 +0     1     0     0
  O     1.46169643 +1  103.5043987 +1    0.0000000 +0     1     2     0
  O     1.65945500 +1   98.1066273 +1  106.2372270 +1     1     2     3
  H     0.96093552 +1  120.7424518 +1  -84.4631382 +1     4     1     2
  H     0.96086832 +1  120.9058168 +1  -23.9965599 +1     2     1     3