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All results from a given calculation for B2H6 (Diborane)

using model chemistry: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-52.896139
Energy at 298.15K-52.901992
HF Energy-52.772064
Nuclear repulsion energy31.423520
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2/SDD
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 2627 2536 0.00 202.51 0.11 0.20
2 Ag 2085 2012 0.00 84.10 0.12 0.21
3 Ag 1165 1124 0.00 20.26 0.75 0.86
4 Ag 773 747 0.00 24.66 0.32 0.48
5 Au 833 804 0.00 0.00 0.00 0.00
6 B1g 2735 2640 0.00 78.98 0.75 0.86
7 B1g 939 906 0.00 11.77 0.75 0.86
8 B1u 1869 1804 45.85 0.00 0.00 0.00
9 B1u 1008 973 2.17 0.00 0.00 0.00
10 B2g 1801 1739 0.00 11.67 0.75 0.86
11 B2g 843 813 0.00 0.00 0.75 0.86
12 B2u 2750 2655 220.20 0.00 0.00 0.00
13 B2u 970 936 0.26 0.00 0.00 0.00
14 B2u 373 360 11.06 0.00 0.00 0.00
15 B3g 1027 991 0.00 34.62 0.75 0.86
16 B3u 2605 2515 177.63 0.00 0.00 0.00
17 B3u 1695 1636 817.91 0.00 0.00 0.00
18 B3u 1153 1113 90.09 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13624.3 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 13151.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2/SDD
ABC
2.62381 0.57378 0.52860

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.918 0.000 0.000
B2 -0.918 0.000 0.000
H3 0.000 0.000 0.985
H4 0.000 0.000 -0.985
H5 1.483 1.053 0.000
H6 1.483 -1.053 0.000
H7 -1.483 1.053 0.000
H8 -1.483 -1.053 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.83581.34661.34661.19511.19512.62202.6220
B21.83581.34661.34662.62202.62201.19511.1951
H31.34661.34661.97062.06872.06872.06872.0687
H41.34661.34661.97062.06872.06872.06872.0687
H51.19512.62202.06872.06872.10562.96683.6381
H61.19512.62202.06872.06872.10563.63812.9668
H72.62201.19512.06872.06872.96683.63812.1056
H82.62201.19512.06872.06873.63812.96682.1056

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 85.945 B1 H4 B2 85.945
H3 B1 H4 94.055 H3 B1 H5 108.818
H3 B1 H6 108.818 H3 B2 H4 94.055
H3 B2 H7 108.818 H3 B2 H8 108.818
H4 B1 H5 108.818 H4 B1 H6 108.818
H4 B2 H7 108.818 H4 B2 H8 108.818
H5 B1 H6 123.514 H7 B2 H8 123.514
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability