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All results from a given calculation for HBHHBH (Diborane(4) C2V)

using model chemistry: MP2=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-51.827570
Energy at 298.15K-51.830452
HF Energy-51.611130
Nuclear repulsion energy24.779275
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/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 2862 2711 0.11      
2 A1 2156 2042 13.36      
3 A1 1368 1296 2.65      
4 A1 1168 1106 1.41      
5 A1 737 698 4.14      
6 A2 1353 1281 0.00      
7 A2 657 622 0.00      
8 B1 2165 2051 35.21      
9 B1 812 769 1.80      
10 B2 2820 2671 29.29      
11 B2 1390 1317 213.17      
12 B2 504 477 30.47      

Unscaled Zero Point Vibrational Energy (zpe) 8995.8 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 8519.9 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/6-311G*
ABC
6.68215 0.84352 0.81209

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.733 -0.116
B2 0.000 -0.733 -0.116
H3 0.904 0.000 0.568
H4 -0.904 0.000 0.568
H5 0.000 1.900 0.014
H6 0.000 -1.900 0.014

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46621.35031.35031.17432.6364
B21.46621.35031.35032.63641.1743
H31.35031.35031.80852.17592.1759
H41.35031.35031.80852.17592.1759
H51.17432.63642.17592.17593.8001
H62.63641.17432.17592.17593.8001

picture of Diborane(4) C2V state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 H3 57.118 B1 B2 H4 57.118
B1 B2 H6 173.611 B1 H3 B2 65.763
B1 H4 B2 65.763 B2 B1 H3 57.118
B2 B1 H4 57.118 B2 B1 H5 173.611
H3 B1 H4 84.081 H3 B1 H5 118.891
H3 B2 H4 84.081 H3 B2 H6 118.891
H4 B1 H5 118.891 H4 B2 H6 118.891
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability