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All results from a given calculation for B2H6 (Diborane)

using model chemistry: MP2=FULL/6-311G*

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=FULL/6-311G*
 hartrees
Energy at 0K-53.045255
Energy at 298.15K-53.051171
HF Energy-52.818023
Nuclear repulsion energy32.111100
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=FULL/6-311G*
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 2649 2509 0.00 230.49 0.13 0.24
2 Ag 2203 2086 0.00 82.60 0.07 0.12
3 Ag 1216 1152 0.00 9.41 0.71 0.83
4 Ag 831 787 0.00 18.98 0.19 0.32
5 Au 873 827 0.00 0.00 0.00 0.00
6 B1g 2733 2589 0.00 104.34 0.75 0.86
7 B1g 955 905 0.00 1.00 0.75 0.86
8 B1u 2053 1945 4.40 0.00 0.00 0.00
9 B1u 1005 952 14.14 0.00 0.00 0.00
10 B2g 1914 1812 0.00 6.16 0.75 0.86
11 B2g 917 869 0.00 4.43 0.75 0.86
12 B2u 2747 2602 165.05 0.00 0.00 0.00
13 B2u 969 918 0.67 0.00 0.00 0.00
14 B2u 354 335 15.87 0.00 0.00 0.00
15 B3g 1077 1020 0.00 33.61 0.75 0.86
16 B3u 2634 2494 145.44 0.00 0.00 0.00
17 B3u 1747 1654 505.19 0.00 0.00 0.00
18 B3u 1202 1138 68.99 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14039.4 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 13296.7 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=FULL/6-311G*
ABC
2.66857 0.61386 0.56400

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.879 0.000 0.000
B2 -0.879 0.000 0.000
H3 0.000 0.000 0.982
H4 0.000 0.000 -0.982
H5 1.454 1.041 0.000
H6 1.454 -1.041 0.000
H7 -1.454 1.041 0.000
H8 -1.454 -1.041 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75721.31791.31791.18971.18972.55432.5543
B21.75721.31791.31792.55432.55431.18971.1897
H31.31791.31791.96452.04032.04032.04032.0403
H41.31791.31791.96452.04032.04032.04032.0403
H51.18972.55432.04032.04032.08292.90753.5766
H61.18972.55432.04032.04032.08293.57662.9075
H72.55431.18972.04032.04032.90753.57662.0829
H82.55431.18972.04032.04033.57662.90752.0829

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.624 B1 H4 B2 83.624
H3 B1 H4 96.376 H3 B1 H5 108.802
H3 B1 H6 108.802 H3 B2 H4 96.376
H3 B2 H7 108.802 H3 B2 H8 108.802
H4 B1 H5 108.802 H4 B1 H6 108.802
H4 B2 H7 108.802 H4 B2 H8 108.802
H5 B1 H6 122.179 H7 B2 H8 122.179
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability