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

using model chemistry: B2PLYP=FULL/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULL/6-31G**
 hartrees
Energy at 0K-51.956143
Energy at 298.15K-51.959014
HF Energy-51.887876
Nuclear repulsion energy24.864876
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/6-31G**
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 2885 2885 0.21      
2 A1 2149 2149 23.28      
3 A1 1384 1384 3.04      
4 A1 1157 1157 3.30      
5 A1 742 742 0.42      
6 A2 1305 1305 0.00      
7 A2 631 631 0.00      
8 B1 2157 2157 74.17      
9 B1 814 814 3.23      
10 B2 2846 2846 36.90      
11 B2 1387 1387 200.00      
12 B2 513 513 35.15      

Unscaled Zero Point Vibrational Energy (zpe) 8984.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8984.6 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/6-31G**
ABC
6.76327 0.84805 0.81686

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.731 -0.116
B2 0.000 -0.731 -0.116
H3 0.898 0.000 0.566
H4 -0.898 0.000 0.566
H5 0.000 1.895 0.013
H6 0.000 -1.895 0.013

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46241.34371.34371.17102.6294
B21.46241.34371.34372.62941.1710
H31.34371.34371.79622.16862.1686
H41.34371.34371.79622.16862.1686
H51.17102.62942.16862.16863.7901
H62.62941.17102.16862.16863.7901

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 57.031 B1 B2 H4 57.031
B1 B2 H6 173.679 B1 H3 B2 65.939
B1 H4 B2 65.939 B2 B1 H3 57.031
B2 B1 H4 57.031 B2 B1 H5 173.679
H3 B1 H4 83.886 H3 B1 H5 119.016
H3 B2 H4 83.886 H3 B2 H6 119.016
H4 B1 H5 119.016 H4 B2 H6 119.016
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability