Accuracy

4-aminopyridine    615 4-Aminopyridine

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    #  Species Formula
   605 1,3-DiazineC4H4N2
   606 PyrazineC4H4N2
   607 PyridazineC4H4N2
   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-Aminopyridine C5H6N2
   616 Dimethyl propanedinitrileC5H6N2
   617 2-Ethyl-1H-imidazoleC5H8N2
   618 DiethylcyanamideC5H10N2
   619 ButylmethyldiazeneC5H12N2
   620 N,N-Dimethyl-1,3-propanediamineC5H14N2
   621 2-CyanopyridineC6H4N2
   622 3-CyanopyridineC6H4N2
   623 4-CyanopyridineC6H4N2
   624 2,3-Dimethyl pyrazineC6H8N2
   625 HexanedinitrileC6H8N2


ΔHf: 31.1 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
4-Aminopyridine
 H=31.05 HR=NIST
  N     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  C     3.67299927 +1    0.0000000 +0    0.0000000 +0     1     0     0
  C     1.39421096 +1   20.7651568 +1    0.0000000 +0     2     1     0
  C     1.37600670 +1   18.3607641 +1  179.9984386 +1     1     2     3
  C     1.41158696 +1  120.5011277 +1  179.9943379 +1     4     1     2
  C     1.39377187 +1  118.0822262 +1 -179.9975279 +1     5     4     1
  N     1.34908512 +1  123.3639039 +1   -0.0015772 +1     6     5     4
  H     0.99417468 +1  102.8141403 +1 -179.9951772 +1     1     2     4
  H     0.99422558 +1  139.4460993 +1  179.9951505 +1     1     2     8
  H     1.08146922 +1  120.6482721 +1  179.9959825 +1     3     2     1
  H     1.08132913 +1  121.1229975 +1 -179.9990568 +1     5     4     6
  H     1.09752644 +1  121.3095743 +1  179.9945529 +1     6     5     7
  H     1.09724380 +1  142.0704080 +1    0.0061230 +1     2     1     3