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

using model chemistry: MP3=FULL/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-51.847345
Energy at 298.15K-51.849894
HF Energy-51.639639
Nuclear repulsion energy22.296394
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/6-31+G**
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 2671 2488 0.00      
2 A1 1271 1184 0.00      
3 A1 880 820 0.00      
4 B1 523 487 0.00      
5 B2 2650 2469 96.07      
6 B2 1210 1127 18.53      
7 E 2729 2543 107.41      
7 E 2729 2543 107.41      
8 E 1036 965 28.67      
8 E 1036 965 28.67      
9 E 458 427 7.08      
9 E 458 427 7.08      

Unscaled Zero Point Vibrational Energy (zpe) 8826.2 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 8222.5 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 MP3=FULL/6-31+G**
ABC
4.08787 0.65663 0.65663

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31+G**

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.827
B2 0.000 0.000 -0.827
H3 0.000 1.012 1.455
H4 0.000 -1.012 1.455
H5 1.012 0.000 -1.455
H6 -1.012 0.000 -1.455

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.65421.19091.19092.49652.4965
B21.65422.49652.49651.19091.1909
H31.19092.49652.02373.24313.2431
H41.19092.49652.02373.24313.2431
H52.49651.19093.24313.24312.0237
H62.49651.19093.24313.24312.0237

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 121.828 B1 B2 H6 121.828
B2 B1 H3 121.828 B2 B1 H4 121.828
H3 B1 H4 116.344 H5 B2 H6 116.344
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability