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

using model chemistry: MP3/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 MP3/aug-cc-pCVTZ
 hartrees
Energy at 0K-51.889185
Energy at 298.15K 
HF Energy-51.652168
Nuclear repulsion energy22.272098
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 MP3/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 2608 2608 0.00      
2 A1 1233 1233 0.00      
3 A1 860 860 0.00      
4 B1 518 518 0.00      
5 B2 2589 2589 80.46      
6 B2 1171 1171 14.18      
7 E 2664 2664 92.30      
7 E 2664 2664 92.30      
8 E 1011 1011 26.57      
8 E 1011 1011 26.57      
9 E 424 424 6.94      
9 E 424 424 6.94      

Unscaled Zero Point Vibrational Energy (zpe) 8588.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8588.3 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 MP3/aug-cc-pCVTZ
ABC
4.05309 0.65707 0.65707

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/aug-cc-pCVTZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.826
B2 0.000 0.000 -0.826
H3 0.000 1.016 1.456
H4 0.000 -1.016 1.456
H5 1.016 0.000 -1.456
H6 -1.016 0.000 -1.456

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.65261.19501.19502.49792.4979
B21.65262.49792.49791.19501.1950
H31.19502.49792.03153.24663.2466
H41.19502.49792.03153.24663.2466
H52.49791.19503.24663.24662.0315
H62.49791.19503.24663.24662.0315

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 121.787 B1 B2 H6 121.787
B2 B1 H3 121.787 B2 B1 H4 121.787
H3 B1 H4 116.426 H5 B2 H6 116.426
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability