Accuracy

1,2-difluorobenzene   1551 1,2-Difluorobenzene

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    #  Species Formula
  1541 Difluoromethyl, cationHCF2
  1542 Difluoromethane, cationCH2F2
  1543 DifluoromethaneCH2F2
  1544 DifluoromethylboraneH3BCF2
  1545 MethyldifluoroboraneH3BCF2
  1546 DifluoroacetyleneC2F2
  1547 gem-DifluoroethyleneC2H2F2
  1548 CH3CF2, cationC2H3F2
  1549 1,1-DifluoroethaneC2H4F2
  1550 F2BCHCH2H3BC2F2
  1551 1,2-Difluorobenzene C6H4F2
  1552 1,3-DifluorobenzeneC6H4F2
  1553 1,4-DifluorobenzeneC6H4F2
  1554 Phenyldifluoroborane (Geo)H5BC6F2
  1555 NF2.NF2
  1556 Difluoro nitrogen, anionNF2
  1557 Aminodifluoroborane (Geo)H2BNF2
  1558 t-ButyldifluoroamineC4H9NF2
  1559 N,N'-DifluorobenzylamineC7H7NF2
  1560 cis-DifluorodiazeneN2F2
  1561 trans-DifluorodiazeneN2F2


ΔHf: -67.7 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
1,2-Difluorobenzene
 H=-67.65 HR=NIST
  C     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  C     1.39469409 +1    0.0000000 +0    0.0000000 +0     1     0     0
  C     1.39500514 +1  120.8048013 +1    0.0000000 +0     2     1     0
  C     1.39479931 +1  120.7914303 +1   -0.0369267 +1     3     2     1
  C     1.39178788 +1  118.4217781 +1    0.0112890 +1     4     3     2
  C     1.39177907 +1  118.4307190 +1    0.0362534 +1     1     2     3
  F     1.32090761 +1  119.9901429 +1 -179.9947676 +1     6     1     2
  F     1.32090123 +1  120.0075573 +1 -179.9735418 +1     5     4     3
  H     1.08971993 +1  120.7208920 +1 -179.9917767 +1     1     2     6
  H     1.08995724 +1  119.4695584 +1  179.9926435 +1     2     1     3
  H     1.08990115 +1  119.7390733 +1  179.9955063 +1     3     2     4
  H     1.08976054 +1  120.7244064 +1 -179.9936156 +1     4     3     5