Accuracy

borane(2)     28 Borane(2)

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    #  Species Formula
    18 Beryllium hydrideHBe
    19 Beryllium dihydrideH2Be
    20 LiBeH (Geo)HLiBe
    21 Lithium beryllium hydrideHLiBe
    22 Beryllium, dimerBe2
    23 Boron, cationB
    24 Boron, atomB
    25 BH (Geo)HB
    26 Borane(1)HB
    27 BH2 (Geo)H2B
    28 Borane(2) H2B
    29 BoraneH3B
    30 Boron dimer (Geo)B2
    31 Boron dimerB2
    32 B2H4 (C2v) (Geo)H4B2
    33 Diborane(4)H4B2
    34 Diborane (Geo)H6B2
    35 DiboraneH6B2
    36 B4H10 (Geo)H10B4
    37 Tetraborane(10)H10B4
    38 B5H9 (Geo)H9B5


ΔHf: 81.3 kcal/mol,     REF: Estimated from DGauss results of DFT calculations, using the B88-PW91 functional and the DZVP basis set, in CAChe 6.0, Fujitsu Ltd, 2003.
  
 PM7
Borane(2)
 H=81.3 HR=PW91D
  H     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  B     1.14076711 +1    0.0000000 +0    0.0000000 +0     1     0     0
  H     1.14075638 +1  179.5893777 +1    0.0000000 +0     2     1     0