PM7 Accuracy

1,2,3,4-tetramethylfulvene    293 1,2,3,4-Tetramethylfulvene

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    #  Species Formula
   283 2a,4a,6a,6b-TetrahydrocyclopentapentaleneC10H10
   284 BulvaleneC10H10
   285 DiisopropenyldiacetyleneC10H10
   286 Tricyclo[6.2.0.0]deca-1(8),2,6-trieneC10H10
   287 1,2,6,7-CyclodecatetraeneC10H12
   288 Dispiro[2.2.2.2]deca-4,9-dieneC10H12
   289 TetralinC10H12
   290 (1-Methylpropyl) benzeneC10H14
   291 (2-Methylpropyl) benzeneC10H14
   292 1,2,3,4-Tetramethyl benzeneC10H14
   293 1,2,3,4-Tetramethylfulvene C10H14
   294 1,2,3,5-Tetramethyl benzeneC10H14
   295 1,2,4,5-Tetramethyl benzeneC10H14
   296 tert-Butyl benzeneC10H14
   297 TetrahydrotriquinaceneC10H14
   298 1,2,3,4,5-Pentamethyl-1,3-cyclopentadieneC10H16
   299 AdamantaneC10H16
   300 CampheneC10H16
   301 PerhydrotriquinaceneC10H16
   302 1-Methyl-4-(1-methylethyl)-cyclohexeneC10H18
   303 4-Methyl-1-(1-methylethyl)-cyclohexeneC10H18


DHf: 19.9 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
1,2,3,4-Tetramethylfulvene
 H=19.9 HR=NIST
  C     0.00000000  0    0.0000000  0    0.0000000  0     0     0     0
  C     1.35885094  1    0.0000000  0    0.0000000  0     1     0     0
  C     1.48452827  1  108.8809589  1    0.0000000  0     2     1     0
  C     1.35914555  1  108.8802158  1    0.0195957  1     3     2     1
  C     1.48696019  1  108.4789459  1    0.0375524  1     1     2     3
  C     1.47412455  1  129.1956958  1  179.9963087  1     1     2     3
  C     1.47495974  1  128.7642962  1  179.9973029  1     2     1     5
  C     1.47499831  1  122.3344681  1 -179.9780453  1     3     2     1
  C     1.47421662  1  129.1701516  1 -179.9895069  1     4     3     2
  C     1.33217664  1  127.3563848  1  179.9850839  1     5     1     2
  H     1.10130380  1  111.2574921  1  120.3637921  1     6     1     2
  H     1.09911158  1  112.5054199  1    0.1323829  1     6     1     2
  H     1.10130633  1  111.2438752  1 -120.0853074  1     6     1     2
  H     1.10126097  1  111.1901932  1  120.2172281  1     7     2     1
  H     1.09902059  1  112.5575664  1   -0.1028864  1     7     2     1
  H     1.10126599  1  111.2016244  1 -120.4360306  1     7     2     1
  H     1.09905181  1  112.5658279  1 -179.8861947  1     8     3     2
  H     1.10127642  1  111.1852724  1   59.7894077  1     8     3     2
  H     1.10127277  1  111.2025616  1  -59.5458821  1     8     3     2
  H     1.10131829  1  111.2565911  1 -120.3551140  1     9     4     3
  H     1.10132052  1  111.2428223  1  120.0971337  1     9     4     3
  H     1.09913615  1  112.4937932  1   -0.1226297  1     9     4     3
  H     1.07936898  1  123.2905123  1 -179.9902036  1    10     5     1
  H     1.07936403  1  123.2805380  1    0.0078944  1    10     5     1