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

using model chemistry: CCD/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 CCD/daug-cc-pVTZ
 hartrees
Energy at 0K-51.892222
Energy at 298.15K 
HF Energy-51.652036
Nuclear repulsion energy22.241807
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-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCD/daug-cc-pVTZ
ABC
4.04286 0.65516 0.65516

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

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 1.017 1.458
H4 0.000 -1.017 1.458
H5 1.017 0.000 -1.458
H6 -1.017 0.000 -1.458

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.65521.19641.19642.50132.5013
B21.65522.50132.50131.19641.1964
H31.19642.50132.03403.25083.2508
H41.19642.50132.03403.25083.2508
H52.50131.19643.25083.25082.0340
H62.50131.19643.25083.25082.0340

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 121.779 B1 B2 H6 121.779
B2 B1 H3 121.779 B2 B1 H4 121.779
H3 B1 H4 116.442 H5 B2 H6 116.442
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability