Accuracy

1,4-dibromobutane   4272 1,4-Dibromobutane

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    #  Species Formula
  4262 Bromine (Geo)Br2
  4263 BromineBr2
  4264 Lithium bromide, dimer (Geo)Li2Br2
  4265 Lithium bromide, dimerLi2Br2
  4266 Beryllium dibromide (Geo)BeBr2
  4267 Beryllium dibromideBeBr2
  4268 Dibromoborane (1)HBBr2
  4269 Dibromomethane (Geo)CH2Br2
  4270 DibromomethaneCH2Br2
  4271 1,1-DibromoethaneC2H4Br2
  4272 1,4-Dibromobutane C4H8Br2
  4273 Li(I)2Br2N4 (SAJVEE01) (Geo)C12H32Li2N4Br2
  4274 Li(I)2Br2N4 (SAJVEE01)C12H32Li2N4Br2
  4275 Carbonyl bromideCOBr2
  4276 Carbonyl bromide (Geo)COBr2
  4277 1,2-Dibromocyclobutene-3,4-dione (Geo)C4O2Br2
  4278 Be(II)O2Br2 (QQQDPY01) (Geo)H20BeC8O2Br2
  4279 Be(II)O2Br2 (QQQDPY01)H20BeC8O2Br2
  4280 Li(I)2Br2O4 (DECXEO01) (Geo)C12H24Li2O4Br2
  4281 Li(I)2Br2O4 (DECXEO01)C12H24Li2O4Br2
  4282 DibromofluoroboraneBFBr2


ΔHf: -20.6 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
1,4-Dibromobutane
 H=-20.55 HR=NIST
 Br     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  C     1.96078440 +1    0.0000000 +0    0.0000000 +0     1     0     0
  C     1.51939295 +1  110.3589825 +1    0.0000000 +0     2     1     0
  C     1.53826562 +1  109.5984027 +1  179.9599640 +1     3     2     1
  C     1.51900669 +1  109.5053166 +1  179.9742363 +1     4     3     2
 Br     1.96056422 +1  110.3894402 +1  179.9495979 +1     5     4     3
  H     1.10086865 +1  106.2515149 +1 -122.0741865 +1     2     1     3
  H     1.10087386 +1  106.2590510 +1  122.0927603 +1     2     1     3
  H     1.10948785 +1  110.8547770 +1   58.4423021 +1     3     2     1
  H     1.10946690 +1  110.8428751 +1  -58.5449051 +1     3     2     1
  H     1.10940759 +1  109.8700218 +1   57.8953070 +1     4     3     2
  H     1.10941220 +1  109.8760547 +1  -57.9306174 +1     4     3     2
  H     1.10104995 +1  112.3685785 +1   61.4838048 +1     5     4     3
  H     1.10103705 +1  112.3583481 +1  -61.5971420 +1     5     4     3