PM7 Accuracy

dispiro(2.2.2.2)deca-4,9-diene    288 Dispiro[2.2.2.2]deca-4,9-diene

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    #  Species Formula
   278 AzuleneC10H8
   279 Naphthalene (Geo)C10H8
   280 NaphthaleneC10H8
   281 1,4-Dicyclopropylbuta-1,3-diyneC10H10
   282 1-Butynl benzeneC10H10
   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-diene C10H12
   289 TetralinC10H12
   290 (1-Methylpropyl) benzeneC10H14
   291 (2-Methylpropyl) benzeneC10H14
   292 1,2,3,4-Tetramethyl benzeneC10H14
   293 1,2,3,4-TetramethylfulveneC10H14
   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


DHf: 72.3 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
Dispiro[2.2.2.2]deca-4,9-diene
 H=72.3 HR=NIST
  C    -0.00058719  1  -0.00568808  1   0.00084388  1
  C     1.33797979  1  -0.00530768  1   0.01042112  1
  C     2.12901710  1   1.23944774  1  -0.06127531  1
  C     1.33817874  1   2.48338346  1  -0.14356942  1
  C    -0.00042195  1   2.48297606  1  -0.15310244  1
  C    -0.79126981  1   1.23826737  1  -0.08247585  1
  C    -2.11712331  1   1.19152940  1  -0.84248785  1
  C    -2.12923457  1   1.28385530  1   0.65653367  1
  C     3.46570080  1   1.19334883  1  -0.80205109  1
  C     3.45593841  1   1.28578244  1   0.69726358  1
  H    -0.57221937  1  -0.93079165  1   0.05422129  1
  H     1.90931330  1  -0.93002777  1   0.07235270  1
  H     1.90983611  1   3.40860306  1  -0.19641428  1
  H    -0.57202119  1   3.40756637  1  -0.21428313  1
  H    -2.41344751  1   0.26967278  1  -1.33398206  1
  H    -2.41355482  1   2.04585378  1  -1.44351530  1
  H    -2.43435891  1   2.20529318  1   1.14320697  1
  H    -2.43453088  1   0.42900476  1   1.25227414  1
  H     3.77025754  1   2.04788767  1  -1.39899582  1
  H     3.76966194  1   0.27157918  1  -1.28920854  1
  H     3.75280536  1   0.43118117  1   1.29715487  1
  H     3.75318529  1   2.20747115  1   1.18803875  1