Accuracy

1,2-dimethylcyclobutene    179 1,2-Dimethylcyclobutene

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    #  Species Formula
   169 Cyclopentadienylberyllium hydrideH6BeC5
   170 C6H5 radicalC6H5
   171 BenzeneC6H6
   172 Benzene (Geo)C6H6
   173 FulveneC6H6
   174 Fulvene (Geo)C6H6
   175 (E)-1,3,5-HexatrieneC6H8
   176 (Z)-1,3,5-HexatrieneC6H8
   177 1,3-CyclohexadieneC6H8
   178 1,4-CyclohexadieneC6H8
   179 1,2-Dimethylcyclobutene C6H10
   180 1,5-HexadieneC6H10
   181 1-Methyl cyclopenteneC6H10
   182 3-Methyl cyclopenteneC6H10
   183 4-Methyl cyclopenteneC6H10
   184 BicyclopropylC6H10
   185 Cyclohexene (Geo)C6H10
   186 CyclohexeneC6H10
   187 Cyclohexyl, cationC6H11
   188 1-HexeneC6H12
   189 2,3-Dimethyl-1-buteneC6H12


ΔHf: 19.8 kcal/mol,     REF: R. B. Turner, P. Goebel, B. J. Mallon, W. von E. Doering, J. F. Coburn, M. Pomerantz, J. Am. Chem. Soc., 90, 4315 (1968).
  
 PM7
1,2-Dimethylcyclobutene
 H=19.8 HR=TGMD1968
  C     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  C     1.35013200 +1    0.0000000 +0    0.0000000 +0     1     0     0
  C     1.53004229 +1   94.2966649 +1    0.0000000 +0     1     2     0
  C     1.53002526 +1   94.3006548 +1    0.0197850 +1     2     1     3
  H     1.08956768 +1  115.3226879 +1 -115.5072253 +1     3     1     2
  H     1.08959370 +1  115.3096728 +1  115.5216479 +1     3     1     2
  H     1.08961932 +1  115.3248461 +1  115.5315556 +1     4     2     1
  H     1.08959796 +1  115.3111690 +1 -115.4881103 +1     4     2     1
  C     1.46128901 +1  136.8272997 +1 -179.9817162 +1     2     1     3
  C     1.46123865 +1  136.8530272 +1  179.9889814 +1     1     2     3
  H     1.10031947 +1  112.1277744 +1   -0.7312768 +1     9     2     1
  H     1.10203986 +1  111.4191933 +1  119.5375157 +1     9     2     1
  H     1.10198318 +1  111.4488244 +1 -121.0398448 +1     9     2     1
  H     1.10034022 +1  112.1321488 +1    0.5422809 +1    10     1     2
  H     1.10196711 +1  111.4496798 +1  120.8534294 +1    10     1     2
  H     1.10200838 +1  111.4244520 +1 -119.7340452 +1    10     1     2