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

using model chemistry: CCD/6-311G**

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/6-311G**
 hartrees
Energy at 0K-51.857937
Energy at 298.15K-51.860435
HF Energy-51.646299
Nuclear repulsion energy22.149616
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/6-311G**
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 2589 2473 0.00      
2 A1 1237 1181 0.00      
3 A1 854 815 0.00      
4 B1 504 481 0.00      
5 B2 2569 2454 85.70      
6 B2 1177 1124 20.47      
7 E 2643 2525 97.25      
7 E 2643 2525 97.25      
8 E 1014 969 24.73      
8 E 1014 969 24.73      
9 E 444 424 7.01      
9 E 444 424 7.01      

Unscaled Zero Point Vibrational Energy (zpe) 8566.3 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 8181.6 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 CCD/6-311G**
ABC
4.02443 0.64849 0.64849

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G**

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.832
B2 0.000 0.000 -0.832
H3 0.000 1.019 1.465
H4 0.000 -1.019 1.465
H5 1.019 0.000 -1.465
H6 -1.019 0.000 -1.465

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.66471.19951.19952.51292.5129
B21.66472.51292.51291.19951.1995
H31.19952.51292.03873.26473.2647
H41.19952.51292.03873.26473.2647
H52.51291.19953.26473.26472.0387
H62.51291.19953.26473.26472.0387

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 121.809 B1 B2 H6 121.809
B2 B1 H3 121.809 B2 B1 H4 121.809
H3 B1 H4 116.382 H5 B2 H6 116.382
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability