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

using model chemistry: CCSD/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/aug-cc-pVDZ
 hartrees
Energy at 0K-51.847648
Energy at 298.15K-51.850106
HF Energy-51.637942
Nuclear repulsion energy21.968170
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/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 2569 2475 0.00      
2 A1 1219 1175 0.00      
3 A1 852 821 0.00      
4 B1 495 477 0.00      
5 B2 2549 2456 88.08      
6 B2 1156 1114 19.59      
7 E 2621 2525 102.47      
7 E 2621 2525 102.47      
8 E 999 962 23.16      
8 E 999 962 23.16      
9 E 428 413 8.60      
9 E 428 413 8.60      

Unscaled Zero Point Vibrational Energy (zpe) 8468.0 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 8158.0 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 CCSD/aug-cc-pVDZ
ABC
3.94810 0.63907 0.63907

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.838
B2 0.000 0.000 -0.838
H3 0.000 1.029 1.477
H4 0.000 -1.029 1.477
H5 1.029 0.000 -1.477
H6 -1.029 0.000 -1.477

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.67551.21141.21142.53292.5329
B21.67552.53292.53291.21141.2114
H31.21142.53292.05833.29253.2925
H41.21142.53292.05833.29253.2925
H52.53291.21143.29253.29252.0583
H62.53291.21143.29253.29252.0583

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 121.834 B1 B2 H6 121.834
B2 B1 H3 121.834 B2 B1 H4 121.834
H3 B1 H4 116.331 H5 B2 H6 116.331
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability