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All results from a given calculation for B2H6 (Diborane)

using model chemistry: MP2=FULL/TZVP

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/TZVP
 hartrees
Energy at 0K-53.093027
Energy at 298.15K-53.098969
HF Energy-52.832364
Nuclear repulsion energy32.248511
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/TZVP
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 2687 2560 0.00 242.13 0.12 0.21
2 Ag 2234 2129 0.00 82.99 0.07 0.13
3 Ag 1243 1185 0.00 10.82 0.72 0.83
4 Ag 829 790 0.00 18.08 0.19 0.33
5 Au 870 829 0.00 0.00 0.00 0.00
6 B1g 2770 2639 0.00 94.99 0.75 0.86
7 B1g 964 919 0.00 1.70 0.75 0.86
8 B1u 2057 1960 9.79 0.00 0.00 0.00
9 B1u 1012 964 22.76 0.00 0.00 0.00
10 B2g 1950 1858 0.00 6.77 0.75 0.86
11 B2g 882 840 0.00 2.67 0.75 0.86
12 B2u 2785 2653 174.47 0.00 0.75 0.86
13 B2u 991 944 2.01 0.00 0.00 0.00
14 B2u 368 351 14.84 0.00 0.00 0.00
15 B3g 1060 1010 0.00 20.44 0.75 0.86
16 B3u 2671 2545 146.17 0.00 0.00 0.00
17 B3u 1787 1702 512.62 0.00 0.00 0.00
18 B3u 1232 1174 83.24 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14196.7 cm-1
Scaled (by 0.9527) Zero Point Vibrational Energy (zpe) 13525.2 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/TZVP
ABC
2.70886 0.61638 0.56609

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.878 0.000 0.000
B2 -0.878 0.000 0.000
H3 0.000 0.000 0.970
H4 0.000 0.000 -0.970
H5 1.451 1.036 0.000
H6 1.451 -1.036 0.000
H7 -1.451 1.036 0.000
H8 -1.451 -1.036 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75571.30831.30831.18381.18382.54872.5487
B21.75571.30831.30832.54872.54871.18381.1838
H31.30831.30831.94012.02952.02952.02952.0295
H41.30831.30831.94012.02952.02952.02952.0295
H51.18382.54872.02952.02952.07192.90163.5654
H61.18382.54872.02952.02952.07193.56542.9016
H72.54871.18382.02952.02952.90163.56542.0719
H82.54871.18382.02952.02953.56542.90162.0719

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.285 B1 H4 B2 84.285
H3 B1 H4 95.715 H3 B1 H5 108.950
H3 B1 H6 108.950 H3 B2 H4 95.715
H3 B2 H7 108.950 H3 B2 H8 108.950
H4 B1 H5 108.950 H4 B1 H6 108.950
H4 B2 H7 108.950 H4 B2 H8 108.950
H5 B1 H6 122.109 H7 B2 H8 122.109
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability