Accuracy

pyridazine    499 Pyridazine

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    #  Species Formula
   489 Dimethyldiazene (Geo)C2H6N2
   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 Pyridazine C4H4N2
   500 1,3-DiazineC4H4N2
   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


ΔHf: 66.5 kcal/mol,     REF: J. O. Cox, G. Pilcher, "Thermochemistry of Organic and Organometallic Compounds," Academic Press, New York, N.Y., 1970.
  
 GEO-OK
Pyridazine
 H=66.5 HR=C&P1970
  C     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  C     1.40187592 +1    0.0000000 +0    0.0000000 +0     1     0     0
  N     1.35701230 +1  121.2629329 +1    0.0000000 +0     2     1     0
  N     1.29051172 +1  121.0697026 +1    0.0228671 +1     3     2     1
  C     1.35689257 +1  121.1055308 +1    0.0068340 +1     4     3     2
  C     1.40196950 +1  121.2719378 +1   -0.0154814 +1     5     4     3
  H     1.09330672 +1  116.0441318 +1  179.9919020 +1     5     4     3
  H     1.08767493 +1  120.8860427 +1  179.9943993 +1     6     5     4
  H     1.08770731 +1  121.4221435 +1 -179.9874619 +1     1     6     5
  H     1.09340060 +1  122.7501870 +1  179.9911079 +1     2     1     6