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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-51.889916
Energy at 298.15K-51.892410
HF Energy-51.646290
Nuclear repulsion energy22.191167
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 2602 2602 0.00      
2 A1 1236 1236 0.00      
3 A1 858 858 0.00      
4 B1 516 516 0.00      
5 B2 2582 2582 81.44      
6 B2 1175 1175 17.55      
7 E 2658 2658 92.92      
7 E 2658 2658 92.92      
8 E 1015 1015 25.43      
8 E 1015 1015 25.43      
9 E 436 436 6.27      
9 E 436 436 6.27      

Unscaled Zero Point Vibrational Energy (zpe) 8592.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8592.4 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
4.03555 0.65134 0.65134

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 0.830
B2 0.000 0.000 -0.830
H3 0.000 1.018 1.462
H4 0.000 -1.018 1.462
H5 1.018 0.000 -1.462
H6 -1.018 0.000 -1.462

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.66051.19791.19792.50792.5079
B21.66052.50792.50791.19791.1979
H31.19792.50792.03593.25883.2588
H41.19792.50792.03593.25883.2588
H52.50791.19793.25883.25882.0359
H62.50791.19793.25883.25882.0359

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 121.816 B1 B2 H6 121.816
B2 B1 H3 121.816 B2 B1 H4 121.816
H3 B1 H4 116.368 H5 B2 H6 116.368
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability