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

using model chemistry: MP2=FULL/aug-cc-pCVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at MP2=FULL/aug-cc-pCVTZ
 hartrees
Energy at 0K-51.948575
Energy at 298.15K 
HF Energy-51.652044
Nuclear repulsion energy22.354122
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 MP2=FULL/aug-cc-pCVTZ
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 2630 2630 0.00      
2 A1 1240 1240 0.00      
3 A1 866 866 0.00      
4 B1 534 534 0.00      
5 B2 2612 2612 76.85      
6 B2 1178 1178 11.76      
7 E 2689 2689 89.00      
7 E 2689 2689 89.00      
8 E 1015 1015 28.01      
8 E 1015 1015 28.01      
9 E 416 416 6.45      
9 E 416 416 6.45      

Unscaled Zero Point Vibrational Energy (zpe) 8649.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8649.5 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 MP2=FULL/aug-cc-pCVTZ
ABC
4.07224 0.66267 0.66267

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pCVTZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.823
B2 0.000 0.000 -0.823
H3 0.000 1.013 1.449
H4 0.000 -1.013 1.449
H5 1.013 0.000 -1.449
H6 -1.013 0.000 -1.449

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.64521.19161.19162.48782.4878
B21.64522.48782.48781.19161.1916
H31.19162.48782.02673.23383.2338
H41.19162.48782.02673.23383.2338
H52.48781.19163.23383.23382.0267
H62.48781.19163.23383.23382.0267

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 121.741 B1 B2 H6 121.741
B2 B1 H3 121.741 B2 B1 H4 121.741
H3 B1 H4 116.518 H5 B2 H6 116.518
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability