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

using model chemistry: B2PLYP=FULLultrafine/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at B2PLYP=FULLultrafine/daug-cc-pVTZ
 hartrees
Energy at 0K-51.996590
Energy at 298.15K 
HF Energy-51.918594
Nuclear repulsion energy22.427536
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 B2PLYP=FULLultrafine/daug-cc-pVTZ
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 2602 2602 0.00      
2 A1 1221 1221 0.00      
3 A1 871 871 0.00      
4 B1 556 556 0.00      
5 B2 2583 2583 67.93      
6 B2 1161 1161 5.55      
7 E 2651 2651 85.38      
7 E 2651 2651 85.41      
8 E 1007 1007 26.85      
8 E 1007 1007 26.85      
9 E 406 406 5.05      
9 E 406 406 5.05      

Unscaled Zero Point Vibrational Energy (zpe) 8559.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8559.9 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 B2PLYP=FULLultrafine/daug-cc-pVTZ
ABC
4.08946 0.66936 0.66936

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/daug-cc-pVTZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.816
B2 0.000 0.000 -0.816
H3 0.000 1.011 1.448
H4 0.000 -1.011 1.448
H5 1.011 0.000 -1.448
H6 -1.011 0.000 -1.448

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.63281.19211.19212.47962.4796
B21.63282.47962.47961.19211.1921
H31.19212.47962.02243.22933.2293
H41.19212.47962.02243.22933.2293
H52.47961.19213.22933.22932.0224
H62.47961.19213.22933.22932.0224

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 121.977 B1 B2 H6 121.977
B2 B1 H3 121.977 B2 B1 H4 121.977
H3 B1 H4 116.045 H5 B2 H6 116.045
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability