Accuracy

diadamantane    346 Diadamantane

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    #  Species Formula
   336 9,10-Dihydro-phenanthreneC14H12
   337 9-Methyl-9H-fluoreneC14H12
   338 OctaleneC14H12
   339 StilbeneC14H12
   340 1,2,3,4-TetrahydrophenanthreneC14H14
   341 4,4'-DimethylbiphenylC14H14
   342 BibenzylC14H14
   343 o,o'-Dimethyl biphenyl, for torsion (Torsion angle) (Geo)C14H14
   344 1,4,5,8-TetramethynaphthaleneC14H16
   345 1,2,3,4,5,6,7,8-Octahydro-anthraceneC14H18
   346 Diadamantane C14H20
   347 1,3,5,7-TetramethyladamantaneC14H24
   348 (E)-3,4-Di-tert-butyl-3-hexeneC14H28
   349 CyclotetradecaneC14H28
   350 n-NonylcyclopentaneC14H28
   351 OctylcyclohexaneC14H28
   352 3,3,4,4-TetraethylhexaneC14H30
   353 OctamethylhexaneC14H30
   354 TetradecaneC14H30
   355 4-MethylphenanthreneC15H12
   356 1-MethyldiadamantaneC15H22


ΔHf: -34.9 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
Diadamantane
 H=-34.87 HR=NIST
  C     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  C     1.54551167 +1    0.0000000 +0    0.0000000 +0     1     0     0
  C     1.54554738 +1  109.1675940 +1    0.0000000 +0     2     1     0
  C     1.54554155 +1  109.1587204 +1  -60.7423756 +1     3     2     1
  C     1.54551345 +1  109.1717780 +1   60.7410374 +1     4     3     2
  C     1.54554598 +1  109.1704226 +1  -60.7341991 +1     5     4     3
  H     1.11165116 +1  109.3658640 +1 -179.6095087 +1     1     2     3
  C     1.53829192 +1  109.7075909 +1  120.1107501 +1     1     2     7
  C     1.53820854 +1  109.7043819 +1 -120.2443357 +1     2     1     3
  H     1.11167540 +1  109.3671280 +1 -120.1200417 +1     2     1     9
  H     1.11165089 +1  109.3715143 +1 -119.6260760 +1     3     2     4
  C     1.53825778 +1  109.7121377 +1 -120.1368316 +1     3     2    11
  H     1.11167898 +1  109.3623121 +1  119.6310285 +1     4     3     5
  C     1.53822561 +1  109.7145948 +1  120.1317293 +1     4     3    13
  H     1.11164420 +1  109.3697180 +1 -119.6263662 +1     5     4     6
  C     1.53826041 +1  109.7074371 +1 -120.1374682 +1     5     4    15
  H     1.11164897 +1  109.3715024 +1 -179.6244911 +1     6     5     4
  C     1.53828009 +1  109.7006228 +1  120.1104261 +1     6     5    17
  C     1.53954174 +1  109.6941404 +1   59.9594502 +1     8     1     2
  H     1.10380418 +1  110.1726455 +1  121.5254721 +1     8     1    19
  H     1.10382354 +1  110.1650742 +1  116.9534815 +1     8     1    20
  C     1.53952993 +1  109.6988997 +1   59.9558329 +1    18     6     5
  H     1.10379360 +1  110.1768631 +1  -61.5881134 +1     9     2     1
  H     1.10382814 +1  110.1713740 +1 -116.9494468 +1     9     2    23
  H     1.10381877 +1  110.1766656 +1  178.5132402 +1    12     3     2
  H     1.10383860 +1  110.1636767 +1 -116.9556128 +1    12     3    25
  H     1.10379575 +1  110.1801816 +1 -178.5193551 +1    14     4     3
  H     1.10382799 +1  110.1725874 +1  116.9595605 +1    14     4    27
  H     1.10381017 +1  110.1757486 +1   61.5757314 +1    16     5     4
  H     1.10381652 +1  110.1710510 +1  116.9589650 +1    16     5    29
  H     1.10378828 +1  110.1808378 +1 -121.5333149 +1    18     6    22
  H     1.10381809 +1  110.1661357 +1 -116.9545805 +1    18     6    31
  H     1.11236130 +1  109.5644536 +1  179.9936284 +1    19     8     1
  H     1.11233623 +1  109.5614622 +1 -179.9974539 +1    22    18     6