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All results from a given calculation for HBHHBH (Diborane(4) C2V)

using model chemistry: CCSD(T)/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD(T)/cc-pVQZ
 hartrees
Energy at 0K-51.913299
Energy at 298.15K-51.916222
HF Energy-51.629319
Nuclear repulsion energy24.838410
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(T)/cc-pVQZ
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 2828 2742        
2 A1 2132 2067        
3 A1 1346 1306        
4 A1 1113 1079        
5 A1 729 707        
6 A2 1343 1302        
7 A2 683 662        
8 B1 2128 2064        
9 B1 797 773        
10 B2 2790 2705        
11 B2 1406 1363        
12 B2 556 539        

Unscaled Zero Point Vibrational Energy (zpe) 8925.2 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 8654.8 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(T)/cc-pVQZ
ABC
6.78344 0.84501 0.81407

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVQZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.733 -0.116
B2 0.000 -0.733 -0.116
H3 0.897 0.000 0.564
H4 -0.897 0.000 0.564
H5 0.000 1.898 0.016
H6 0.000 -1.898 0.016

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46551.34291.34291.17302.6344
B21.46551.34291.34292.63441.1730
H31.34291.34291.79392.16972.1697
H41.34291.34291.79392.16972.1697
H51.17302.63442.16972.16973.7966
H62.63441.17302.16972.16973.7966

picture of Diborane(4) C2V state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 H3 56.930 B1 B2 H4 56.930
B1 B2 H6 173.532 B1 H3 B2 66.139
B1 H4 B2 66.139 B2 B1 H3 56.930
B2 B1 H4 56.930 B2 B1 H5 173.532
H3 B1 H4 83.811 H3 B1 H5 119.024
H3 B2 H4 83.811 H3 B2 H6 119.024
H4 B1 H5 119.024 H4 B2 H6 119.024
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability