Accuracy

trimethyl pyrazine    636 Trimethyl pyrazine

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    #  Species Formula
   626 PhenylhydrazineC6H8N2
   627 3(Dimethylamino) propanenitrileC6H12N2
   628 TetramethyldiazetineC6H12N2
   629 TriethylenediamineC6H12N2
   630 1,2-DiisopropyldiazeneC6H14N2
   631 DipropyldiazeneC6H14N2
   632 1H-BenzimidazoleC7H6N2
   633 1H-IndazoleC7H6N2
   634 1-Methyl-1-phenylhydrazineC7H10N2
   635 t-ButylmalononitrileC7H10N2
   636 Trimethyl pyrazine C7H10N2
   637 1-PiperidineacetonitrileC7H12N2
   638 3,3,5,5-Tetramethyl-1-pyrazolineC7H14N2
   639 m-DicyanobenzeneC8H4N2
   640 o-DicyanobenzeneC8H4N2
   641 p-DicyanobenzeneC8H4N2
   642 PhthalazineC8H6N2
   643 QuinazolineC8H6N2
   644 QuinoxalineC8H6N2
   645 n-PentylmalonodinitrileC8H12N2
   646 TetramethylbutanedinitrileC8H12N2


ΔHf: 17.8 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
Trimethyl pyrazine
 H=17.8 HR=NIST
  C     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  C     1.42157403 +1    0.0000000 +0    0.0000000 +0     1     0     0
  N     1.34556742 +1  120.4456851 +1    0.0000000 +0     2     1     0
  C     1.34311165 +1  118.6397765 +1   -0.0448367 +1     3     2     1
  C     1.41151690 +1  121.1792294 +1    0.0134513 +1     4     3     2
  N     1.34899774 +1  120.3503301 +1    0.0410972 +1     5     4     3
  C     1.48870602 +1  122.1144535 +1 -179.9831515 +1     1     2     3
  C     1.48872316 +1  122.0649013 +1 -179.9894773 +1     2     1     3
  C     1.48795428 +1  121.7841851 +1 -179.9328020 +1     5     4     6
  H     1.09293559 +1  116.5892398 +1  179.9923455 +1     4     3     5
  H     1.10017844 +1  111.4502460 +1   59.3752970 +1     7     1     2
  H     1.10433279 +1  111.6960474 +1  119.7948387 +1     7     1    11
  H     1.10030206 +1  111.3792762 +1  119.6936436 +1     7     1    12
  H     1.09988963 +1  111.4905937 +1  -59.6153591 +1     8     2     1
  H     1.10439583 +1  111.6117962 +1 -119.7222904 +1     8     2    14
  H     1.09999526 +1  111.4244296 +1 -119.6385903 +1     8     2    15
  H     1.10007227 +1  111.5203005 +1  -58.2896569 +1     9     5     4
  H     1.10041253 +1  111.3795229 +1  120.5932179 +1     9     5    17
  H     1.10428298 +1  111.7376465 +1  119.5971029 +1     9     5    18