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All results from a given calculation for BH4 (borohydride)

using model chemistry: QCISD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B2
Energy calculated at QCISD/3-21G*
 hartrees
Energy at 0K-26.813648
Energy at 298.15K-26.816386
HF Energy-26.724666
Nuclear repulsion energy10.272632
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 QCISD/3-21G*
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 2646 2543 24.25      
2 A1 2058 1978 97.93      
3 A1 1266 1217 62.52      
4 A1 724 695 47.49      
5 A2 881 847 0.00      
6 B1 2776 2668 62.11      
7 B1 1092 1050 0.70      
8 B2 1979 1902 4.93      
9 B2 740 711 1.51      

Unscaled Zero Point Vibrational Energy (zpe) 7080.8 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 6805.3 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 QCISD/3-21G*
ABC
5.80169 4.43083 3.01911

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.149
H2 0.000 0.529 -1.036
H3 0.000 -0.529 -1.036
H4 -1.078 0.000 0.663
H5 1.078 0.000 0.663

Atom - Atom Distances (Å)
  B1 H2 H3 H4 H5
B11.29761.29761.19421.1942
H21.29761.05732.08042.0804
H31.29761.05732.08042.0804
H41.19422.08042.08042.1560
H51.19422.08042.08042.1560

picture of borohydride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 B1 H3 48.082 H2 B1 H4 113.139
H2 B1 H5 113.139 H3 B1 H4 113.139
H3 B1 H5 113.139 H4 B1 H5 129.027
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability