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

using model chemistry: MP3=FULL/aug-cc-pVDZ

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=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-51.845396
Energy at 298.15K-51.847853
HF Energy-51.638017
Nuclear repulsion energy22.010576
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=FULL/aug-cc-pVDZ
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 2597 2597 0.00      
2 A1 1223 1223 0.00      
3 A1 855 855 0.00      
4 B1 503 503 0.00      
5 B2 2577 2577 87.31      
6 B2 1160 1160 19.03      
7 E 2652 2652 99.32      
7 E 2652 2652 99.32      
8 E 1002 1002 24.70      
8 E 1002 1002 24.70      
9 E 423 423 8.32      
9 E 423 423 8.32      

Unscaled Zero Point Vibrational Energy (zpe) 8534.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8534.0 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=FULL/aug-cc-pVDZ
ABC
3.96586 0.64115 0.64115

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.837
B2 0.000 0.000 -0.837
H3 0.000 1.027 1.474
H4 0.000 -1.027 1.474
H5 1.027 0.000 -1.474
H6 -1.027 0.000 -1.474

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.67341.20831.20832.52822.5282
B21.67342.52822.52821.20831.2083
H31.20832.52822.05373.28553.2855
H41.20832.52822.05373.28553.2855
H52.52821.20833.28553.28552.0537
H62.52821.20833.28553.28552.0537

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 121.809 B1 B2 H6 121.809
B2 B1 H3 121.809 B2 B1 H4 121.809
H3 B1 H4 116.383 H5 B2 H6 116.383
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability