Accuracy

dispiro(2.2.2.2)deca-4,9-diene    286 Dispiro[2.2.2.2]deca-4,9-diene

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    #  Species Formula
   276 AzuleneC10H8
   277 Naphthalene (Geo)C10H8
   278 NaphthaleneC10H8
   279 1,4-Dicyclopropylbuta-1,3-diyneC10H10
   280 1-Butynl benzeneC10H10
   281 2a,4a,6a,6b-TetrahydrocyclopentapentaleneC10H10
   282 BulvaleneC10H10
   283 DiisopropenyldiacetyleneC10H10
   284 Tricyclo[6.2.0.0]deca-1(8),2,6-trieneC10H10
   285 1,2,6,7-CyclodecatetraeneC10H12
   286 Dispiro[2.2.2.2]deca-4,9-diene C10H12
   287 TetralinC10H12
   288 (1-Methylpropyl) benzeneC10H14
   289 (2-Methylpropyl) benzeneC10H14
   290 1,2,3,4-Tetramethyl benzeneC10H14
   291 1,2,3,4-TetramethylfulveneC10H14
   292 1,2,3,5-Tetramethyl benzeneC10H14
   293 1,2,4,5-Tetramethyl benzeneC10H14
   294 tert-Butyl benzeneC10H14
   295 TetrahydrotriquinaceneC10H14
   296 1,2,3,4,5-Pentamethyl-1,3-cyclopentadieneC10H16


ΔHf: 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