PM7 Accuracy

imidazole    603 Imidazole

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    #  Species Formula
   593 DiazomethaneCH2N2
   594 N=N-CH2-CH2N2
   595 MethylhydrazineCH6N2
   596 Cyanogen (Geo)C2N2
   597 CyanogenC2N2
   598 Dimethyldiazene (Geo)C2H6N2
   599 1,1-DimethylhydrazineC2H8N2
   600 1,2-DimethylhydrazineC2H8N2
   601 EthylenediamineC2H8N2
   602 1H-PyrazoleC3H4N2
   603 Imidazole C3H4N2
   604 1,2-PropanediamineC3H10N2
   605 DicyanoacetyleneC4N2
   606 FumaronitrileC4H2N2
   607 1,3-DiazineC4H4N2
   608 PyrazineC4H4N2
   609 PyridazineC4H4N2
   610 SuccinonitrileC4H4N2
   611 2-Methyl-1H-imidazoleC4H6N2
   612 (Dimethylamino) acetonitrileC4H8N2
   613 1,4,5,6-TetrahydropyrimidineC4H8N2


DHf: 31.8 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
Imidazole
 H=31.76 HR=NIST
  C     0.00000000  0    0.0000000  0    0.0000000  0     0     0     0
  C     1.39562555  1    0.0000000  0    0.0000000  0     1     0     0
  N     1.39602082  1  106.1213954  1    0.0000000  0     2     1     0
  C     1.39786375  1  107.1350796  1   -0.0004915  1     3     2     1
  N     1.34162938  1  110.1255913  1   -0.0041807  1     4     3     2
  H     1.07238796  1  129.4971499  1  179.9988115  1     1     2     3
  H     1.06804639  1  122.9423120  1  179.9994015  1     2     3     4
  H     0.99307530  1  127.2985928  1  179.9998582  1     3     4     5
  H     1.07536010  1  123.6666851  1  179.9989014  1     4     3     2