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

using model chemistry: CCSD=FULL/6-311+G(3df,2p)

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=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-51.927667
Energy at 298.15K-51.930138
HF Energy-51.650159
Nuclear repulsion energy22.300919
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=FULL/6-311+G(3df,2p)
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 2593 2593 0.00      
2 A1 1229 1229 0.00      
3 A1 864 864 0.00      
4 B1 520 520 0.00      
5 B2 2573 2573 76.92      
6 B2 1168 1168 12.30      
7 E 2644 2644 91.38      
7 E 2644 2644 91.38      
8 E 1010 1010 25.51      
8 E 1010 1010 25.51      
9 E 422 422 6.80      
9 E 422 422 6.80      

Unscaled Zero Point Vibrational Energy (zpe) 8549.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8549.9 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 CCSD=FULL/6-311+G(3df,2p)
ABC
4.05850 0.65970 0.65970

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-311+G(3df,2p)

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.824
B2 0.000 0.000 -0.824
H3 0.000 1.015 1.455
H4 0.000 -1.015 1.455
H5 1.015 0.000 -1.455
H6 -1.015 0.000 -1.455

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.64771.19511.19512.49452.4945
B21.64772.49452.49451.19511.1951
H31.19512.49452.03013.24433.2443
H41.19512.49452.03013.24433.2443
H52.49451.19513.24433.24432.0301
H62.49451.19513.24433.24432.0301

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 121.861 B1 B2 H6 121.861
B2 B1 H3 121.861 B2 B1 H4 121.861
H3 B1 H4 116.277 H5 B2 H6 116.277
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability