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

using model chemistry: CCD/daug-cc-pVDZ

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/daug-cc-pVDZ
 hartrees
Energy at 0K-51.847312
Energy at 298.15K-51.849783
HF Energy-51.638244
Nuclear repulsion energy21.970868
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/daug-cc-pVDZ
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 2573 2573 0.00      
2 A1 1221 1221 0.00      
3 A1 851 851 0.00      
4 B1 493 493 0.00      
5 B2 2554 2554 91.71      
6 B2 1159 1159 21.40      
7 E 2627 2627 103.31      
7 E 2627 2627 103.31      
8 E 1004 1004 24.09      
8 E 1004 1004 24.09      
9 E 433 433 8.99      
9 E 433 433 8.99      

Unscaled Zero Point Vibrational Energy (zpe) 8489.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8489.4 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/daug-cc-pVDZ
ABC
3.95337 0.63867 0.63867

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/daug-cc-pVDZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.838
B2 0.000 0.000 -0.838
H3 0.000 1.028 1.476
H4 0.000 -1.028 1.476
H5 1.028 0.000 -1.476
H6 -1.028 0.000 -1.476

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.67681.21021.21022.53292.5329
B21.67682.53292.53291.21021.2102
H31.21022.53292.05693.29143.2914
H41.21022.53292.05693.29143.2914
H52.53291.21023.29143.29142.0569
H62.53291.21023.29143.29142.0569

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 121.810 B1 B2 H6 121.810
B2 B1 H3 121.810 B2 B1 H4 121.810
H3 B1 H4 116.380 H5 B2 H6 116.380
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability