return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CCD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/6-31+G**
 hartrees
Energy at 0K-51.833608
Energy at 298.15K-51.836313
HF Energy-51.609697
Nuclear repulsion energy24.874781
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 CCD/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 2893 2726 0.09      
2 A1 2193 2066 27.84      
3 A1 1389 1309 2.42      
4 A1 1160 1093 1.84      
5 A1 719 677 3.67      
6 A2 1382 1303 0.00      
7 A2 530 499 0.00      
8 B1 2201 2074 61.81      
9 B1 795 749 2.98      
10 B2 2850 2686 48.52      
11 B2 1452 1368 224.25      
12 B2 399 376 25.76      

Unscaled Zero Point Vibrational Energy (zpe) 8980.5 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 8462.3 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 CCD/6-31+G**
ABC
6.85571 0.84681 0.81327

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.733 -0.114
B2 0.000 -0.733 -0.114
H3 0.902 0.000 0.546
H4 -0.902 0.000 0.546
H5 0.000 1.896 0.025
H6 0.000 -1.896 0.025

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46671.33711.33711.17122.6332
B21.46671.33711.33712.63321.1712
H31.33711.33711.80402.16342.1634
H41.33711.33711.80402.16342.1634
H51.17122.63322.16342.16343.7924
H62.63321.17122.16342.16343.7924

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 56.738 B1 B2 H4 56.738
B1 B2 H6 173.147 B1 H3 B2 66.523
B1 H4 B2 66.523 B2 B1 H3 56.738
B2 B1 H4 56.738 B2 B1 H5 173.147
H3 B1 H4 84.850 H3 B1 H5 119.052
H3 B2 H4 84.850 H3 B2 H6 119.052
H4 B1 H5 119.052 H4 B2 H6 119.052
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability