Accuracy

2,3-dimethyl hexane    254 2,3-Dimethyl hexane

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    #  Species Formula
   244 Bicyclo(2.2.2)-octaneC8H14
   245 Bicyclo-2,2,2-octaneC8H14
   246 1-OcteneC8H16
   247 EthylcyclohexaneC8H16
   248 2,2,3,3-Tetramethyl butaneC8H18
   249 2,2,3-Trimethyl pentaneC8H18
   250 2,2,4-Trimethyl pentaneC8H18
   251 2,2-Dimethyl hexaneC8H18
   252 2,3,3-Trimethyl pentaneC8H18
   253 2,3,4-Trimethyl pentaneC8H18
   254 2,3-Dimethyl hexane C8H18
   255 2,4-Dimethyl hexaneC8H18
   256 2,5-Dimethyl hexaneC8H18
   257 2-Methyl heptaneC8H18
   258 3,3-Dimethyl hexaneC8H18
   259 3,4-Dimethyl hexaneC8H18
   260 3-Ethyl hexaneC8H18
   261 3-Ethyl-2-methyl pentaneC8H18
   262 3-Ethyl-3-methyl pentaneC8H18
   263 3-Methyl heptaneC8H18
   264 4-Methyl heptaneC8H18


ΔHf: -51.1 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
2,3-Dimethyl hexane
 HR=NIST H=-51.13
  C     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  C     1.52943554 +1    0.0000000 +0    0.0000000 +0     1     0     0
  C     1.53425792 +1  110.8364140 +1    0.0000000 +0     2     1     0
  C     1.54199933 +1  111.6173306 +1 -178.2691835 +1     3     2     1
  C     1.55010238 +1  109.9859268 +1  161.0451443 +1     4     3     2
  C     1.53226083 +1  112.7302395 +1   69.6170859 +1     5     4     3
  C     1.53472589 +1  110.6158965 +1  123.4819046 +1     5     4     6
  C     1.53223635 +1  110.4419507 +1  124.8398028 +1     4     3     5
  H     1.09559533 +1  111.4116503 +1  -59.4305290 +1     1     2     3
  H     1.09555165 +1  111.4457483 +1  120.1092648 +1     1     2     9
  H     1.09541831 +1  111.1860139 +1  119.9613786 +1     1     2    10
  H     1.10626992 +1  109.8610568 +1  122.0355276 +1     2     1     3
  H     1.10636388 +1  109.8779966 +1  116.0422149 +1     2     1    12
  H     1.10631521 +1  109.3273947 +1  121.9706089 +1     3     2     4
  H     1.10529236 +1  109.9159311 +1  115.5505141 +1     3     2    14
  H     1.11856939 +1  108.1989815 +1  118.3464546 +1     4     3     8
  H     1.11963621 +1  107.3980405 +1  117.5067859 +1     5     4     7
  H     1.09508843 +1  111.4083135 +1  -54.0644715 +1     6     5     4
  H     1.09531478 +1  111.5561105 +1  120.2441501 +1     6     5    18
  H     1.09535850 +1  111.0651418 +1  119.8138979 +1     6     5    19
  H     1.09507109 +1  111.6007515 +1  -63.8370018 +1     7     5     4
  H     1.09487849 +1  111.4185786 +1  120.2699239 +1     7     5    21
  H     1.09523242 +1  111.0469054 +1  119.9430708 +1     7     5    22
  H     1.09516068 +1  111.3774296 +1 -176.9219720 +1     8     4     3
  H     1.09514628 +1  111.6147280 +1  120.3102139 +1     8     4    24
  H     1.09535035 +1  111.1473538 +1  119.9020549 +1     8     4    25