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All results from a given calculation for B2H4 (Diborane(4) D2d)

using model chemistry: MP3=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at MP3=FULL/6-311G*
 hartrees
Energy at 0K-51.856996
Energy at 298.15K-51.859478
HF Energy-51.641042
Nuclear repulsion energy22.183703
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=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 A1 2581 2581 0.00      
2 A1 1220 1220 0.00      
3 A1 862 862 0.00      
4 B1 525 525 0.00      
5 B2 2562 2562 72.39      
6 B2 1158 1158 8.76      
7 E 2639 2639 85.36      
7 E 2639 2639 85.36      
8 E 1008 1008 21.63      
8 E 1008 1008 21.63      
9 E 433 433 4.35      
9 E 433 433 4.35      

Unscaled Zero Point Vibrational Energy (zpe) 8533.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8533.4 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=FULL/6-311G*
ABC
4.01706 0.65306 0.65306

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G*

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.828
B2 0.000 0.000 -0.828
H3 0.000 1.020 1.463
H4 0.000 -1.020 1.463
H5 1.020 0.000 -1.463
H6 -1.020 0.000 -1.463

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.65531.20211.20212.50792.5079
B21.65532.50792.50791.20211.2021
H31.20212.50792.04063.26303.2630
H41.20212.50792.04063.26303.2630
H52.50791.20213.26303.26302.0406
H62.50791.20213.26303.26302.0406

picture of Diborane(4) D2d state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 H5 121.926 B1 B2 H6 121.926
B2 B1 H3 121.926 B2 B1 H4 121.926
H3 B1 H4 116.149 H5 B2 H6 116.149
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability