Accuracy

sodium bromide, dimer   4286 Sodium bromide, dimer

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    #  Species Formula
  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
  4283 DifluorodibromomethaneCF2Br2
  4284 1,2-DibromotetrafluoroethaneC2F4Br2
  4285 Sodium bromide, dimer (Geo)Na2Br2
  4286 Sodium bromide, dimer Na2Br2
  4287 Magnesium dibromideMgBr2
  4288 Magnesium dibromide (Geo)MgBr2
  4289 Mg(II)O2Br2 (MGBEET) (Geo)C8H20O2MgBr2
  4290 Mg(II)O2Br2 (MGBEET)C8H20O2MgBr2
  4291 Mg(II)O5Br2 (GUPJAC) (Geo)C10H22O5MgBr2
  4292 Mg(II)O5Br2 (GUPJAC)C10H22O5MgBr2
  4293 Silicon dibromideSiBr2
  4294 DibromosilaneH2SiBr2
  4295 SiH2CBr (ZUHPIB) (Geo)C2H8Si2Br2
  4296 SiH2CBr (ZUHPIB)C2H8Si2Br2


ΔHf: -116.2 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
Sodium bromide, dimer
 H=-116.24 HR=NIST
 Na     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
 Br     2.63439159 +1    0.0000000 +0    0.0000000 +0     0     0     0
 Na     2.63466878 +1   88.1676825 +1    0.0000000 +0     2     1     0
 Br     2.63328976 +1   91.8278215 +1    0.0000000 +1     3     2     1