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

using model chemistry: CCD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at CCD/6-31G
 hartrees
Energy at 0K-51.743428
Energy at 298.15K-51.745982
HF Energy-51.614038
Nuclear repulsion energy22.017787
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 CCD/6-31G
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 2557 2453 0.00      
2 A1 1233 1184 0.00      
3 A1 867 832 0.00      
4 B1 531 509 0.00      
5 B2 2535 2433 87.21      
6 B2 1187 1138 13.45      
7 E 2611 2506 95.98      
7 E 2611 2506 95.98      
8 E 1017 975 26.65      
8 E 1017 975 26.65      
9 E 469 450 4.68      
9 E 469 450 4.68      

Unscaled Zero Point Vibrational Energy (zpe) 8551.4 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 8205.0 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 CCD/6-31G
ABC
3.97065 0.64265 0.64265

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.834
B2 0.000 0.000 -0.834
H3 0.000 1.026 1.476
H4 0.000 -1.026 1.476
H5 1.026 0.000 -1.476
H6 -1.026 0.000 -1.476

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.66851.21051.21052.52812.5281
B21.66852.52812.52811.21051.2105
H31.21052.52812.05253.28983.2898
H41.21052.52812.05253.28983.2898
H52.52811.21053.28983.28982.0525
H62.52811.21053.28983.28982.0525

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 122.027 B1 B2 H6 122.027
B2 B1 H3 122.027 B2 B1 H4 122.027
H3 B1 H4 115.945 H5 B2 H6 115.945
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability