Accuracy

pyridazine    607 Pyridazine

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    #  Species Formula
   597 1,1-DimethylhydrazineC2H8N2
   598 1,2-DimethylhydrazineC2H8N2
   599 EthylenediamineC2H8N2
   600 1H-PyrazoleC3H4N2
   601 ImidazoleC3H4N2
   602 1,2-PropanediamineC3H10N2
   603 DicyanoacetyleneC4N2
   604 FumaronitrileC4H2N2
   605 1,3-DiazineC4H4N2
   606 PyrazineC4H4N2
   607 Pyridazine C4H4N2
   608 SuccinonitrileC4H4N2
   609 2-Methyl-1H-imidazoleC4H6N2
   610 (Dimethylamino) acetonitrileC4H8N2
   611 1,4,5,6-TetrahydropyrimidineC4H8N2
   612 PiperazineC4H10N2
   613 2-AminopyridineC5H6N2
   614 3-AminopyridineC5H6N2
   615 4-AminopyridineC5H6N2
   616 Dimethyl propanedinitrileC5H6N2
   617 2-Ethyl-1H-imidazoleC5H8N2


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 PM7
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