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

using model chemistry: CCSD=FULL/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 CCSD=FULL/cc-pVTZ
 hartrees
Energy at 0K-51.919614
Energy at 298.15K-51.922141
HF Energy-51.651474
Nuclear repulsion energy22.408503
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 CCSD=FULL/cc-pVTZ
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 2613 2477 0.00      
2 A1 1241 1177 0.00      
3 A1 876 831 0.00      
4 B1 547 519 0.00      
5 B2 2590 2456 76.42      
6 B2 1179 1118 11.43      
7 E 2669 2531 89.53      
7 E 2669 2531 89.53      
8 E 1028 974 27.15      
8 E 1028 974 27.15      
9 E 434 412 6.18      
9 E 434 412 6.18      

Unscaled Zero Point Vibrational Energy (zpe) 8654.7 cm-1
Scaled (by 0.9481) Zero Point Vibrational Energy (zpe) 8205.5 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 CCSD=FULL/cc-pVTZ
ABC
4.09417 0.66654 0.66654

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/cc-pVTZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.819
B2 0.000 0.000 -0.819
H3 0.000 1.011 1.448
H4 0.000 -1.011 1.448
H5 1.011 0.000 -1.448
H6 -1.011 0.000 -1.448

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.63871.19021.19022.48232.4823
B21.63872.48232.48231.19021.1902
H31.19022.48232.02133.22933.2293
H41.19022.48232.02133.22933.2293
H52.48231.19023.22933.22932.0213
H62.48231.19023.22933.22932.0213

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 121.880 B1 B2 H6 121.880
B2 B1 H3 121.880 B2 B1 H4 121.880
H3 B1 H4 116.239 H5 B2 H6 116.239
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability