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All results from a given calculation for B2H6 (Diborane)

using model chemistry: MP3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-53.070639
Energy at 298.15K-53.076604
HF Energy-52.819702
Nuclear repulsion energy32.254010
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 MP3/6-31+G**
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 2723 2534 0.00      
2 Ag 2268 2111 0.00      
3 Ag 1256 1169 0.00      
4 Ag 842 784 0.00      
5 Au 872 811 0.00      
6 B1g 2809 2613 0.00      
7 B1g 971 903 0.00      
8 B1u 2087 1942 22.24      
9 B1u 1019 948 25.21      
10 B2g 1956 1820 0.00      
11 B2g 886 825 0.00      
12 B2u 2820 2624 170.14      
13 B2u 1019 948 3.89      
14 B2u 381 355 13.39      
15 B3g 1088 1013 0.00      
16 B3u 2709 2520 145.93      
17 B3u 1818 1692 515.16      
18 B3u 1247 1160 85.57      

Unscaled Zero Point Vibrational Energy (zpe) 14385.2 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 13385.4 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 MP3/6-31+G**
ABC
2.71903 0.61520 0.56505

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

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 0.967
H4 0.000 0.000 -0.967
H5 1.452 1.035 0.000
H6 1.452 -1.035 0.000
H7 -1.452 1.035 0.000
H8 -1.452 -1.035 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75811.30671.30671.18291.18292.55072.5507
B21.75811.30671.30672.55072.55071.18291.1829
H31.30671.30671.93362.02842.02842.02842.0284
H41.30671.30671.93362.02842.02842.02842.0284
H51.18292.55072.02842.02842.06942.90473.5665
H61.18292.55072.02842.02842.06943.56652.9047
H72.55071.18292.02842.02842.90473.56652.0694
H82.55071.18292.02842.02843.56652.90472.0694

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.557 B1 H4 B2 84.557
H3 B1 H4 95.443 H3 B1 H5 109.029
H3 B1 H6 109.029 H3 B2 H4 95.443
H3 B2 H7 109.029 H3 B2 H8 109.029
H4 B1 H5 109.029 H4 B1 H6 109.029
H4 B2 H7 109.029 H4 B2 H8 109.029
H5 B1 H6 122.021 H7 B2 H8 122.021
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability