Accuracy

methionine   2164 Methionine

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    #  Species Formula
  2154 Di-n-butyl sulfoneC8H18O2S
  2155 Di-tert-butyl sulfoneC8H18O2S
  2156 Diisobutyl sulfoneC8H18O2S
  2157 (E)-1-Methyl-4-(1-propenyl-sulfonyl)-benzeneC10H12O2S
  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 Methionine C5H11NO2S
  2165 Sulfur trioxide (Geo)O3S
  2166 Sulfur trioxideO3S
  2167 HOSO2(-)HO3S
  2168 H2SO3H2O3S
  2169 Dimethyl sulfiteC2H6O3S
  2170 Dimethyl sulfite (Geo)C2H6O3S
  2171 (CH3O)(C2H5O)SOC3H8O3S
  2172 Diethyl sulfiteC4H10O3S
  2173 Dipropyl sulfiteC6H14O3S
  2174 Di-n-butyl sulfiteC8H18O3S


ΔHf: -98.8 kcal/mol,     REF: NIST Chemistry WebBook, NIST Standard Reference Database, No. 69; W. G. Mallard, P. J. Linstrom, Eds., National Institute of Standards and Technology, Gaithersberg, http://webbook.nist.gov/chemistry.
  
 PM7
Methionine
 H=-98.83 HR=NIST
  C     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  S     1.82021778 +1    0.0000000 +0    0.0000000 +0     1     0     0
  C     1.83936543 +1  101.5432191 +1    0.0000000 +0     2     1     0
  C     1.52436871 +1  109.0427942 +1  175.5081100 +1     3     2     1
  C     1.54556533 +1  109.5423223 +1 -179.1324830 +1     4     3     2
  C     1.52692860 +1  107.8508923 +1 -173.5976967 +1     5     4     3
  O     1.20176075 +1  127.4585355 +1 -107.1382948 +1     6     5     4
  O     1.35271023 +1  110.8054182 +1   73.5899611 +1     6     5     4
  N     1.46634773 +1  110.7829760 +1   64.5906886 +1     5     4     3
  H     1.09762594 +1  108.0623964 +1  179.7361451 +1     1     2     3
  H     1.09404348 +1  112.0883360 +1   60.9077572 +1     1     2     3
  H     1.09453650 +1  112.0239174 +1  -61.4954168 +1     1     2     3
  H     1.10867816 +1  110.1286663 +1   54.1920935 +1     3     2     1
  H     1.10436746 +1  109.7111724 +1  -62.6065126 +1     3     2     1
  H     1.11201616 +1  111.0609201 +1   60.3999309 +1     4     3     2
  H     1.10977781 +1  111.0995926 +1  -57.4970439 +1     4     3     2
  H     1.12540810 +1  109.8715260 +1  -54.8735972 +1     5     4     3
  H     0.98994021 +1  114.0784617 +1 -179.7526693 +1     8     6     5
  H     1.00941482 +1  112.5065622 +1  176.4180827 +1     9     5     4
  H     1.01000452 +1  112.4602913 +1   53.1516494 +1     9     5     4