Accuracy

2,2,3-trimethyl butane    218 2,2,3-Trimethyl butane

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    #  Species Formula
   208 1-Ethyl cyclopenteneC7H12
   209 1-Methyl cyclohexeneC7H12
   210 NorbornaneC7H12
   211 1,1-Dimethyl cyclopentaneC7H14
   212 1,2-cis-Dimethyl cyclopentaneC7H14
   213 1,2-trans-Dimethyl cyclopentaneC7H14
   214 1,3-cis-Dimethyl cyclopentaneC7H14
   215 1-HepteneC7H14
   216 Ethyl cyclopentaneC7H14
   217 Methyl-cyclohexaneC7H14
   218 2,2,3-Trimethyl butane C7H16
   219 2,2-Dimethyl pentaneC7H16
   220 2,3-Dimethyl pentaneC7H16
   221 2,4-Dimethyl pentaneC7H16
   222 2-Methyl hexaneC7H16
   223 3,3-Dimethyl pentaneC7H16
   224 3-Ethyl pentaneC7H16
   225 3-Methyl hexaneC7H16
   226 n-HeptaneC7H16
   227 CubaneC8H8
   228 CyclooctatetraeneC8H8


ΔHf: -48.7 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
2,2,3-Trimethyl butane
 HR=NIST H=-48.69
  C     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  C     1.53518918 +1    0.0000000 +0    0.0000000 +0     1     0     0
  C     1.55624508 +1  112.4554355 +1    0.0000000 +0     2     1     0
  C     1.53574219 +1  112.0783051 +1   61.5379704 +1     3     2     1
  C     1.54092331 +1  109.5317795 +1  120.9040458 +1     3     2     4
  C     1.54089983 +1  109.5873859 +1  118.0837457 +1     3     2     5
  C     1.53463568 +1  108.7102567 +1  125.2731143 +1     2     1     3
  H     1.09495730 +1  111.5595357 +1  -62.1316377 +1     1     2     3
  H     1.09444592 +1  111.7408013 +1  120.7207822 +1     1     2     8
  H     1.09558513 +1  110.9268190 +1  119.6728753 +1     1     2     9
  H     1.11918708 +1  107.9137267 +1  116.9823322 +1     2     1     7
  H     1.09483311 +1  111.4599001 +1  -60.4347416 +1     4     3     2
  H     1.09474225 +1  111.4728621 +1  120.2772724 +1     4     3    12
  H     1.09507009 +1  111.1599905 +1  119.9103575 +1     4     3    13
  H     1.09455650 +1  111.5792406 +1  -66.5701968 +1     5     3     2
  H     1.09427311 +1  111.4265384 +1  120.5693014 +1     5     3    15
  H     1.09516457 +1  111.0868470 +1  119.9292683 +1     5     3    16
  H     1.09434652 +1  111.4093418 +1  -54.1866906 +1     6     3     2
  H     1.09454703 +1  111.5763864 +1  120.6110253 +1     6     3    18
  H     1.09509162 +1  111.1165610 +1  119.5163046 +1     6     3    19
  H     1.09459531 +1  111.7089644 +1  175.0646395 +1     7     2     1
  H     1.09486193 +1  111.5832148 +1  120.7481944 +1     7     2    21
  H     1.09565497 +1  110.9286822 +1  119.7048429 +1     7     2    22