Accuracy

1,2-dimethylhydrazine    598 1,2-Dimethylhydrazine

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    #  Species Formula
   588 DiazeneH2N2
   589 HydrazineH4N2
   590 BH3-NH3, dimer (Geo)H12B2N2
   591 DiazomethaneCH2N2
   592 N=N-CH2-CH2N2
   593 MethylhydrazineCH6N2
   594 Cyanogen (Geo)C2N2
   595 CyanogenC2N2
   596 Dimethyldiazene (Geo)C2H6N2
   597 1,1-DimethylhydrazineC2H8N2
   598 1,2-Dimethylhydrazine C2H8N2
   599 EthylenediamineC2H8N2
   600 1H-PyrazoleC3H4N2
   601 ImidazoleC3H4N2
   602 1,2-PropanediamineC3H10N2
   603 DicyanoacetyleneC4N2
   604 FumaronitrileC4H2N2
   605 1,3-DiazineC4H4N2
   606 PyrazineC4H4N2
   607 PyridazineC4H4N2
   608 SuccinonitrileC4H4N2


ΔHf: 22.0 kcal/mol,     REF: J. O. Cox, G. Pilcher, "Thermochemistry of Organic and Organometallic Compounds," Academic Press, New York, N.Y., 1970.
  
 PM7
1,2-Dimethylhydrazine
 H=22.0 HR=C&P1970
  N     0.03060200 +1  -0.05181746 +1   0.02311709 +1
  N     1.43282007 +1  -0.31799705 +1  -0.21200587 +1
  H     1.72006130 +1   0.31244517 +1  -0.97633308 +1
  H    -0.25620137 +1  -0.68344535 +1   0.78645878 +1
  C    -0.72696957 +1  -0.40949225 +1  -1.20601139 +1
  H    -1.80057193 +1  -0.29335313 +1  -0.98894184 +1
  H    -0.47146794 +1   0.29529058 +1  -2.01318052 +1
  H    -0.54257744 +1  -1.43133720 +1  -1.57051332 +1
  C     2.18888630 +1   0.04287509 +1   1.01759146 +1
  H     2.00343811 +1   1.06499039 +1   1.37961973 +1
  H     1.93141896 +1  -0.66072400 +1   1.82635861 +1
  H     3.26271092 +1  -0.07416306 +1   0.80266220 +1