PM7 Accuracy

4-aminopyridine    617 4-Aminopyridine

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    #  Species Formula
   607 1,3-DiazineC4H4N2
   608 PyrazineC4H4N2
   609 PyridazineC4H4N2
   610 SuccinonitrileC4H4N2
   611 2-Methyl-1H-imidazoleC4H6N2
   612 (Dimethylamino) acetonitrileC4H8N2
   613 1,4,5,6-TetrahydropyrimidineC4H8N2
   614 PiperazineC4H10N2
   615 2-AminopyridineC5H6N2
   616 3-AminopyridineC5H6N2
   617 4-Aminopyridine C5H6N2
   618 Dimethyl propanedinitrileC5H6N2
   619 2-Ethyl-1H-imidazoleC5H8N2
   620 DiethylcyanamideC5H10N2
   621 ButylmethyldiazeneC5H12N2
   622 ButylmethyldiazineC5H12N2
   623 N,N-Dimethyl-1,3-propanediamineC5H14N2
   624 2-CyanopyridineC6H4N2
   625 3-CyanopyridineC6H4N2
   626 4-CyanopyridineC6H4N2
   627 2,3-Dimethyl pyrazineC6H8N2


DHf: 31.0 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