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

using model chemistry: B2PLYP=FULLultrafine/aug-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 B2PLYP=FULLultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-51.960432
Energy at 298.15K 
HF Energy-51.902012
Nuclear repulsion energy22.200967
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/aug-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 2589 2491 0.00      
2 A1 1207 1162 0.00      
3 A1 866 833 0.00      
4 B1 538 518 0.00      
5 B2 2568 2471 71.53      
6 B2 1143 1100 7.13      
7 E 2641 2541 89.53      
7 E 2641 2541 89.53      
8 E 998 960 24.45      
8 E 998 960 24.45      
9 E 401 385 5.64      
9 E 401 385 5.64      

Unscaled Zero Point Vibrational Energy (zpe) 8494.1 cm-1
Scaled (by 0.9623) Zero Point Vibrational Energy (zpe) 8173.9 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/aug-cc-pVDZ
ABC
3.99826 0.65642 0.65642

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

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 1.023 1.461
H4 0.000 -1.023 1.461
H5 1.023 0.000 -1.461
H6 -1.023 0.000 -1.461

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.64871.20491.20492.50412.5041
B21.64872.50412.50411.20491.2049
H31.20492.50412.04543.26113.2611
H41.20492.50412.04543.26113.2611
H52.50411.20493.26113.26112.0454
H62.50411.20493.26113.26112.0454

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 121.920 B1 B2 H6 121.920
B2 B1 H3 121.920 B2 B1 H4 121.920
H3 B1 H4 116.160 H5 B2 H6 116.160
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability