Accuracy

1,3-diazine    500 1,3-Diazine

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    #  Species Formula
   490 EthylenediamineC2H8N2
   491 1,1-DimethylhydrazineC2H8N2
   492 1,2-DimethylhydrazineC2H8N2
   493 1H-PyrazoleC3H4N2
   494 ImidazoleC3H4N2
   495 1,2-PropanediamineC3H10N2
   496 DicyanoacetyleneC4N2
   497 FumaronitrileC4H2N2
   498 PyrazineC4H4N2
   499 PyridazineC4H4N2
   500 1,3-Diazine C4H4N2
   501 SuccinonitrileC4H4N2
   502 2-Methyl-1H-imidazoleC4H6N2
   503 (Dimethylamino) acetonitrileC4H8N2
   504 1,4,5,6-TetrahydropyrimidineC4H8N2
   505 PiperazineC4H10N2
   506 2-AminopyridineC5H6N2
   507 3-AminopyridineC5H6N2
   508 4-AminopyridineC5H6N2
   509 Dimethyl propanedinitrileC5H6N2
   510 2-Ethyl-1H-imidazoleC5H8N2


ΔHf: 47.0 kcal/mol,     REF: J. O. Cox, G. Pilcher, "Thermochemistry of Organic and Organometallic Compounds," Academic Press, New York, N.Y., 1970.
  
 GEO-OK
1,3-Diazine
 H=47.0 HR=C&P1970
  C     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  C     1.40088650 +1    0.0000000 +0    0.0000000 +0     1     0     0
  N     1.34712630 +1  121.5678626 +1    0.0000000 +0     2     1     0
  C     1.35309482 +1  117.7274624 +1    0.0081301 +1     3     2     1
  N     1.35262436 +1  124.3565430 +1   -0.0021006 +1     4     3     2
  C     1.34730372 +1  117.7577346 +1   -0.0069189 +1     5     4     3
  H     1.10161340 +1  117.7458310 +1 -179.9993883 +1     4     3     2
  H     1.09738641 +1  116.1164835 +1  179.9980618 +1     6     5     4
  H     1.08384993 +1  121.4770994 +1 -179.9934006 +1     1     6     5
  H     1.09745757 +1  122.2822104 +1  179.9940454 +1     2     1     6