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All results from a given calculation for B2H6 (Diborane)

using model chemistry: QCISD(TQ)=FULL/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at QCISD(TQ)=FULL/Def2TZVPP
 hartrees
Energy at 0K-53.184304
Energy at 298.15K 
HF Energy-52.836046
Nuclear repulsion energy32.244721
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 QCISD(TQ)=FULL/Def2TZVPP
Rotational Constants (cm-1) from geometry optimized at QCISD(TQ)=FULL/Def2TZVPP
ABC
2.70387 0.61688 0.56652

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)=FULL/Def2TZVPP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.877 0.000 0.000
B2 -0.877 0.000 0.000
H3 0.000 0.000 0.972
H4 0.000 0.000 -0.972
H5 1.451 1.037 0.000
H6 1.451 -1.037 0.000
H7 -1.451 1.037 0.000
H8 -1.451 -1.037 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75441.30901.30901.18461.18462.54812.5481
B21.75441.30901.30902.54812.54811.18461.1846
H31.30901.30901.94322.03042.03042.03042.0304
H41.30901.30901.94322.03042.03042.03042.0304
H51.18462.54812.03042.03042.07322.90103.5657
H61.18462.54812.03042.03042.07323.56572.9010
H72.54811.18462.03042.03042.90103.56572.0732
H82.54811.18462.03042.03043.56572.90102.0732

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.153 B1 H4 B2 84.153
H3 B1 H4 95.847 H3 B1 H5 108.925
H3 B1 H6 108.925 H3 B2 H4 95.847
H3 B2 H7 108.925 H3 B2 H8 108.925
H4 B1 H5 108.925 H4 B1 H6 108.925
H4 B2 H7 108.925 H4 B2 H8 108.925
H5 B1 H6 122.108 H7 B2 H8 122.108
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability