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

using model chemistry: CCSD=FULL/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at CCSD=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-51.851901
Energy at 298.15K-51.854357
HF Energy-51.637969
Nuclear repulsion energy21.993248
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 CCSD=FULL/aug-cc-pVDZ
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 2577 2577 0.00      
2 A1 1221 1221 0.00      
3 A1 854 854 0.00      
4 B1 497 497 0.00      
5 B2 2556 2556 87.04      
6 B2 1157 1157 18.89      
7 E 2628 2628 101.35      
7 E 2628 2628 101.35      
8 E 999 999 23.33      
8 E 999 999 23.33      
9 E 425 425 8.43      
9 E 425 425 8.43      

Unscaled Zero Point Vibrational Energy (zpe) 8483.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8483.6 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 CCSD=FULL/aug-cc-pVDZ
ABC
3.95839 0.64057 0.64057

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/aug-cc-pVDZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.837
B2 0.000 0.000 -0.837
H3 0.000 1.028 1.475
H4 0.000 -1.028 1.475
H5 1.028 0.000 -1.475
H6 -1.028 0.000 -1.475

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.67321.21021.21022.53022.5302
B21.67322.53022.53021.21021.2102
H31.21022.53022.05563.28943.2894
H41.21022.53022.05563.28943.2894
H52.53021.21023.28943.28942.0556
H62.53021.21023.28943.28942.0556

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 121.862 B1 B2 H6 121.862
B2 B1 H3 121.862 B2 B1 H4 121.862
H3 B1 H4 116.277 H5 B2 H6 116.277
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability