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

using model chemistry: CCD/TZVP

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/TZVP
 hartrees
Energy at 0K-51.861728
Energy at 298.15K-51.864254
HF Energy-51.650614
Nuclear repulsion energy22.244156
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/TZVP
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 2622 2485 0.00      
2 A1 1254 1189 0.00      
3 A1 868 823 0.00      
4 B1 509 483 0.00      
5 B2 2601 2466 86.73      
6 B2 1196 1134 18.85      
7 E 2677 2538 96.86      
7 E 2677 2538 96.86      
8 E 1023 970 27.50      
8 E 1023 970 27.50      
9 E 452 428 7.42      
9 E 452 428 7.42      

Unscaled Zero Point Vibrational Energy (zpe) 8677.1 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 8225.9 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 CCD/TZVP
ABC
4.05632 0.65480 0.65480

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/TZVP

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.828
B2 0.000 0.000 -0.828
H3 0.000 1.015 1.459
H4 0.000 -1.015 1.459
H5 1.015 0.000 -1.459
H6 -1.015 0.000 -1.459

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.65511.19591.19592.50232.5023
B21.65512.50232.50231.19591.1959
H31.19592.50232.03073.25303.2530
H41.19592.50232.03073.25303.2530
H52.50231.19593.25303.25302.0307
H62.50231.19593.25303.25302.0307

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 121.896 B1 B2 H6 121.896
B2 B1 H3 121.896 B2 B1 H4 121.896
H3 B1 H4 116.208 H5 B2 H6 116.208
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability