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

using model chemistry: B2PLYP=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at B2PLYP=FULL/6-311G*
 hartrees
Energy at 0K-51.969310
Energy at 298.15K-51.971766
HF Energy-51.907876
Nuclear repulsion energy22.329471
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 B2PLYP=FULL/6-311G*
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 2583 2583 0.00      
2 A1 1217 1217 0.00      
3 A1 868 868 0.00      
4 B1 548 548 0.00      
5 B2 2563 2563 71.11      
6 B2 1153 1153 5.66      
7 E 2632 2632 90.01      
7 E 2632 2632 90.01      
8 E 1001 1001 25.91      
8 E 1001 1001 25.91      
9 E 411 411 4.06      
9 E 411 411 4.06      

Unscaled Zero Point Vibrational Energy (zpe) 8509.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8509.7 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 B2PLYP=FULL/6-311G*
ABC
4.06184 0.66352 0.66352

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G*

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 1.015 1.456
H4 0.000 -1.015 1.456
H5 1.015 0.000 -1.456
H6 -1.015 0.000 -1.456

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.63881.19781.19782.49142.4914
B21.63882.49142.49141.19781.1978
H31.19782.49142.02933.24653.2465
H41.19782.49142.02933.24653.2465
H52.49141.19783.24653.24652.0293
H62.49141.19783.24653.24652.0293

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 122.107 B1 B2 H6 122.107
B2 B1 H3 122.107 B2 B1 H4 122.107
H3 B1 H4 115.787 H5 B2 H6 115.787
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability