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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-51.839586
Energy at 298.15K-51.842142
HF Energy-51.638436
Nuclear repulsion energy22.255205
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 2664 2498 0.00      
2 A1 1278 1198 0.00      
3 A1 880 825 0.00      
4 B1 510 479 0.00      
5 B2 2644 2479 88.88      
6 B2 1218 1142 22.62      
7 E 2723 2553 93.16      
7 E 2723 2553 93.16      
8 E 1039 974 29.92      
8 E 1039 974 29.92      
9 E 469 440 6.70      
9 E 469 440 6.70      

Unscaled Zero Point Vibrational Energy (zpe) 8827.8 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 8276.9 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
4.08554 0.65344 0.65344

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 0.829
B2 0.000 0.000 -0.829
H3 0.000 1.012 1.460
H4 0.000 -1.012 1.460
H5 1.012 0.000 -1.460
H6 -1.012 0.000 -1.460

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.65831.19241.19242.50312.5031
B21.65832.50312.50311.19241.1924
H31.19242.50312.02343.25233.2523
H41.19242.50312.02343.25233.2523
H52.50311.19243.25233.25232.0234
H62.50311.19243.25233.25232.0234

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 121.960 B1 B2 H6 121.960
B2 B1 H3 121.960 B2 B1 H4 121.960
H3 B1 H4 116.081 H5 B2 H6 116.081
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability