Accuracy

ethylenetricarbonitrile    687 Ethylenetricarbonitrile

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    #  Species Formula
   677 2,2'-BiquinolineC18H12N2
   678 TetraisobutylsuccinonitrileC20H36N2
   679 AzideN3
   680 Azide (Geo)N3
   681 Hydrazoic acidHN3
   682 BorazoleH6B3N3
   683 Borazole (Geo)H6B3N3
   684 Methyl AzideCH3N3
   685 1,3,5-TriazineC3H3N3
   686 s-Triazine (Geo)C3H3N3
   687 Ethylenetricarbonitrile HC5N3
   688 1,1,1-EthanetricarbonitrileC5H3N3
   689 TrisdimethylaminoboraneH18BC6N3
   690 1,3,5-TricyanobenzeneC9H3N3
   691 1,1,1-Tricyano-2-phenyl ethaneC11H7N3
   692 2,2',6',2'-TerpyridineC15H11N3
   693 Li(I)N3C (DANKUY) (Geo)H28LiC15N3
   694 Li(I)N3C (DANKUY)H28LiC15N3
   695 1-H TetrazoleCH2N4
   696 2-H-TetrazoleCH2N4
   697 TetracyanoethyleneC6N4


ΔHf: 124.4 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
Ethylenetricarbonitrile
 H=124.4 HR=NIST
  C     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  C     1.34844531 +1    0.0000000 +0    0.0000000 +0     1     0     0
  C     1.41907253 +1  123.3868368 +1    0.0000000 +0     1     2     0
  N     1.15695717 +1  153.9949892 +1 -179.9930859 +1     3     2     1
  C     1.42499533 +1  123.7277249 +1    0.0123524 +1     2     1     3
  N     1.15613774 +1  153.2358379 +1 -179.9923528 +1     5     1     2
  C     1.42645983 +1  120.9478671 +1  179.9983698 +1     2     1     5
  N     1.15610894 +1  151.2455000 +1 -179.9885581 +1     7     1     2
  H     1.10508167 +1  121.4760931 +1  179.9916926 +1     1     2     3