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

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-51.823395
Energy at 298.15K-51.826274
HF Energy-51.618557
Nuclear repulsion energy24.775862
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 MP2/6-311G**
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 2868 2725 0.06      
2 A1 2146 2039 16.07      
3 A1 1358 1291 2.73      
4 A1 1122 1066 2.90      
5 A1 738 702 3.21      
6 A2 1363 1295 0.00      
7 A2 649 617 0.00      
8 B1 2151 2043 42.63      
9 B1 809 769 2.63      
10 B2 2828 2687 31.69      
11 B2 1406 1336 220.29      
12 B2 502 477 31.81      

Unscaled Zero Point Vibrational Energy (zpe) 8970.4 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 8523.7 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 MP2/6-311G**
ABC
6.75432 0.84067 0.80909

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.735 -0.115
B2 0.000 -0.735 -0.115
H3 0.902 0.000 0.563
H4 -0.902 0.000 0.563
H5 0.000 1.902 0.010
H6 0.000 -1.902 0.010

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.47071.34661.34661.17302.6400
B21.47071.34661.34662.64001.1730
H31.34661.34661.80362.17622.1762
H41.34661.34661.80362.17622.1762
H51.17302.64002.17622.17623.8035
H62.64001.17302.17622.17623.8035

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 56.901 B1 B2 H4 56.901
B1 B2 H6 173.900 B1 H3 B2 66.198
B1 H4 B2 66.198 B2 B1 H3 56.901
B2 B1 H4 56.901 B2 B1 H5 173.900
H3 B1 H4 84.087 H3 B1 H5 119.309
H3 B2 H4 84.087 H3 B2 H6 119.309
H4 B1 H5 119.309 H4 B2 H6 119.309
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability