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/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/6-31G
 hartrees
Energy at 0K-51.715968
Energy at 298.15K-51.717983
HF Energy-51.563126
Nuclear repulsion energy24.462321
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/6-31G
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 2816 2702 0.22      
2 A1 2028 1946 27.97      
3 A1 1342 1288 4.94      
4 A1 1138 1092 9.49      
5 A1 676 648 1.70      
6 A2 1230 1180 0.00      
7 A2 276 264 0.00      
8 B1 2008 1926 81.56      
9 B1 757 727 0.66      
10 B2 2775 2662 41.49      
11 B2 1285 1233 199.04      
12 B2 112 108 60.80      

Unscaled Zero Point Vibrational Energy (zpe) 8220.6 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 7887.6 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 CCD/6-31G
ABC
6.45308 0.82508 0.79087

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.743 -0.116
B2 0.000 -0.743 -0.116
H3 0.931 0.000 0.563
H4 -0.931 0.000 0.563
H5 0.000 1.919 0.018
H6 0.000 -1.919 0.018

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.48531.37141.37141.18402.6651
B21.48531.37141.37142.66511.1840
H31.37141.37141.86252.20172.2017
H41.37141.37141.86252.20172.2017
H51.18402.66512.20172.20173.8381
H62.66511.18402.20172.20173.8381

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 57.213 B1 B2 H4 57.213
B1 B2 H6 173.491 B1 H3 B2 65.575
B1 H4 B2 65.575 B2 B1 H3 57.213
B2 B1 H4 57.213 B2 B1 H5 173.491
H3 B1 H4 85.537 H3 B1 H5 118.806
H3 B2 H4 85.537 H3 B2 H6 118.806
H4 B1 H5 118.806 H4 B2 H6 118.806
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability