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

using model chemistry: CCSD(T)=FULL/cc-pVQZ

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(T)=FULL/cc-pVQZ
 hartrees
Energy at 0K-51.964884
Energy at 298.15K-51.967346
HF Energy-51.654796
Nuclear repulsion energy22.381739
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(T)=FULL/cc-pVQZ
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 1230 1188        
2 A1 868 838        
3 B1 533 515        
4 B2 1167 1127        
5 E 2648 2557        
6 E 2648 2556        
7 E 2593 2503        
7 E 2573 2484        
8 E 1005 971        
8 E 1005 971        
9 E 413 398        
9 E 412 398        

Unscaled Zero Point Vibrational Energy (zpe) 8546.7 cm-1
Scaled (by 0.9656) Zero Point Vibrational Energy (zpe) 8252.7 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(T)=FULL/cc-pVQZ
ABC
4.06576 0.66643 0.66643

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

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 1.014 1.448
H4 0.000 -1.014 1.448
H5 1.014 0.000 -1.448
H6 -1.014 0.000 -1.448

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.63791.19351.19352.48362.4836
B21.63792.48362.48361.19351.1935
H31.19352.48362.02833.23203.2320
H41.19352.48362.02833.23203.2320
H52.48361.19353.23203.23202.0283
H62.48361.19353.23203.23202.0283

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 121.817 B1 B2 H6 121.817
B2 B1 H3 121.817 B2 B1 H4 121.817
H3 B1 H4 116.367 H5 B2 H6 116.367
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability