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

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/6-311G**
 hartrees
Energy at 0K-51.981644
Energy at 298.15K 
HF Energy-51.912948
Nuclear repulsion energy22.352966
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 B2PLYP=FULLultrafine/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 2591 2591 0.00      
2 A1 1217 1217 0.00      
3 A1 866 866 0.00      
4 B1 549 549 0.00      
5 B2 2571 2571 69.70      
6 B2 1155 1155 6.15      
7 E 2640 2640 88.05      
7 E 2640 2640 88.05      
8 E 1005 1005 25.91      
8 E 1005 1005 25.91      
9 E 406 406 4.13      
9 E 406 406 4.13      

Unscaled Zero Point Vibrational Energy (zpe) 8525.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8525.3 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 B2PLYP=FULLultrafine/6-311G**
ABC
4.06398 0.66456 0.66456

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-311G**

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.820
B2 0.000 0.000 -0.820
H3 0.000 1.014 1.452
H4 0.000 -1.014 1.452
H5 1.014 0.000 -1.452
H6 -1.014 0.000 -1.452

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.63931.19541.19542.48792.4879
B21.63932.48792.48791.19541.1954
H31.19542.48792.02883.23923.2392
H41.19542.48792.02883.23923.2392
H52.48791.19543.23923.23922.0288
H62.48791.19543.23923.23922.0288

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 121.944 B1 B2 H6 121.944
B2 B1 H3 121.944 B2 B1 H4 121.944
H3 B1 H4 116.113 H5 B2 H6 116.113
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability