PM7 Accuracy

spiro(4-5)decane    305 Spiro(4-5)decane

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    #  Species Formula
   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
   304 cis-DecalinC10H18
   305 Spiro(4-5)decane C10H18
   306 trans-DecalinC10H18
   307 (E)-2,2,5,5-Tetramethyl-3-hexeneC10H20
   308 (Z)-2,2,5,5-Tetramethyl-3-hexeneC10H20
   309 1-DeceneC10H20
   310 Butyl cyclohexaneC10H20
   311 Pentyl cyclopentaneC10H20
   312 2,2,5,5-TetramethylhexaneC10H22
   313 3,3,4,4-TetramethylhexaneC10H22
   314 n-DecaneC10H22
   315 PentamethylbenzeneC11H16


DHf: -34.7 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
Spiro(4-5)decane
 H=-34.68 HR=NIST
  C     0.00000000  0    0.0000000  0    0.0000000  0     0     0     0
  C     1.53374280  1    0.0000000  0    0.0000000  0     1     0     0
  C     1.53344526  1  110.4782634  1    0.0000000  0     2     1     0
  C     1.53858973  1  111.6118864  1  -57.9494101  1     3     2     1
  C     1.54188009  1  109.7237044  1   55.3336334  1     4     3     2
  C     1.53330474  1  110.2239796  1   58.0685026  1     1     2     3
  C     1.55056889  1  110.2820720  1  176.1171706  1     4     3     2
  C     1.53762191  1  106.1587575  1  150.9497458  1     7     4     3
  C     1.54154503  1  106.7972936  1  -20.5213692  1     8     7     4
  C     1.53848492  1  106.9793042  1    1.9385129  1     9     8     7
  H     1.10470262  1  110.2363479  1  179.9412695  1     1     2     3
  H     1.10592729  1  109.9166529  1  -63.3393638  1     1     2     3
  H     1.10517454  1  110.1946147  1  121.7331136  1     2     1     3
  H     1.10583301  1  109.9395836  1 -121.6190633  1     2     1     3
  H     1.10638976  1  109.6770101  1   63.3558511  1     3     2     1
  H     1.10509691  1  109.9443561  1  179.5027812  1     3     2     1
  H     1.10614254  1  109.3252935  1   67.0452913  1     5     4     3
  H     1.10552215  1  109.4890407  1 -177.0695278  1     5     4     3
  H     1.10513927  1  110.1805825  1 -178.6710936  1     6     1     2
  H     1.10594447  1  109.9394479  1   64.9748445  1     6     1     2
  H     1.09911490  1  111.8823899  1  -86.7262710  1     7     4     3
  H     1.10285040  1  110.3738010  1   31.3307934  1     7     4     3
  H     1.10241407  1  110.6915688  1   99.9814321  1     8     7     4
  H     1.10091007  1  111.1429597  1 -142.1439339  1     8     7     4
  H     1.10209669  1  110.6218762  1  122.7084676  1     9     8     7
  H     1.10105376  1  111.2432994  1 -119.4055754  1     9     8     7
  H     1.09964397  1  111.7394349  1  139.6592532  1    10     9     8
  H     1.10278975  1  110.4370352  1 -102.4715367  1    10     9     8