Accuracy

4,4'-bipyridine    553 4,4'-Bipyridine

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    #  Species Formula
   543 Di-n-butyldiazeneC8H18N2
   544 Di-tert-butyldiazeneC8H18N2
   545 1,2-DibutylhydrazineC8H20N2
   546 3-QuinolinamineC9H8N2
   547 5-QuinolinamineC9H8N2
   548 6-QuinolinamineC9H8N2
   549 8-QuinolinamineC9H8N2
   550 2-(Diethylamino)-pentanenitrileC9H18N2
   551 2,2-BipyridylC10H8N2
   552 2,4-BipyridylC10H8N2
   553 4,4'-Bipyridine C10H8N2
   554 2,3-Dimethyl quinoxalineC10H10N2
   555 alpha N,N-dimethylamino phenylacetonitrileC10H12N2
   556 Ethyl(1,1-dimethylpropyl)malonodinitrileC10H16N2
   557 Meso-2,3-diethyl-2,3-dimethylsuccinodinitrileC10H16N2
   558 Methyl(1,1,2-trimethylpropyl)malonodinitrileC10H16N2
   559 PhenazineC12H8N2
   560 PhenazoneC12H8N2
   561 cis-AzobenzeneC12H10N2
   562 Diphenyl diazeneC12H10N2
   563 4,4'-Dimethyl-2,2'-bipyridineC12H12N2


ΔHf: 70.0 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.
  

4,4'-Bipyridine
 H=70.05 HR=NIST
  N     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  C     1.34591328 +1    0.0000000 +0    0.0000000 +0     1     0     0
  C     1.40047901 +1  122.6476886 +1    0.0000000 +0     2     1     0
  C     1.39615457 +1  118.3742709 +1   -0.3046409 +1     3     2     1
  C     1.39641084 +1  119.3495395 +1    0.1733313 +1     4     3     2
  C     1.34611008 +1  118.6031069 +1    0.1514991 +1     1     2     3
  C     1.46839207 +1  120.3481304 +1 -179.9671795 +1     4     3     5
  C     1.39623667 +1  120.3236557 +1  118.5675389 +1     7     4     3
  C     1.40046492 +1  118.3519649 +1 -179.9091495 +1     8     7     4
  N     1.34586683 +1  122.6918052 +1   -0.2379389 +1     9     8     7
  C     1.34607590 +1  118.5650650 +1    0.1570096 +1    10     9     8
  C     1.40037578 +1  122.6709508 +1    0.0960360 +1    11    10     9
  H     1.09656288 +1  115.7317451 +1  179.9558080 +1     2     1     3
  H     1.08646131 +1  120.6877316 +1 -179.6342331 +1     3     2     4
  H     1.09658680 +1  115.7324166 +1 -179.8783105 +1     6     1     2
  H     1.09662841 +1  121.5429663 +1 -179.9770794 +1     9     8    10
  H     1.09663979 +1  115.7206048 +1  179.9839337 +1    11    10    12
  H     1.08647546 +1  120.6984612 +1 -179.8970255 +1    12    11    10
  H     1.08647665 +1  120.9093803 +1  179.7653978 +1     5     4     3
  H     1.08637804 +1  120.9288237 +1  179.6828045 +1     8     7     9