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 B2H6 (Diborane)

using model chemistry: CCSD=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at CCSD=FULL/cc-pVDZ
 hartrees
Energy at 0K-53.078378
Energy at 298.15K-53.084289
HF Energy-52.815818
Nuclear repulsion energy31.683302
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 CCSD=FULL/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 2642 2642        
2 Ag 2198 2198        
3 Ag 1213 1213        
4 Ag 813 813        
5 Au 838 838        
6 B1g 2723 2723        
7 B1g 935 935        
8 B1u 2020 2020 18.22      
9 B1u 1000 1000 20.35      
10 B2g 1888 1888        
11 B2g 881 881        
12 B2u 2736 2736 181.23      
13 B2u 989 989 1.75      
14 B2u 368 368 14.37      
15 B3g 1070 1070        
16 B3u 2624 2624 153.64      
17 B3u 1758 1758 551.14      
18 B3u 1196 1196 88.16      

Unscaled Zero Point Vibrational Energy (zpe) 13945.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13945.4 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 CCSD=FULL/cc-pVDZ
ABC
2.61868 0.59389 0.54533

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.895 0.000 0.000
B2 -0.895 0.000 0.000
H3 0.000 0.000 0.985
H4 0.000 0.000 -0.985
H5 1.476 1.054 0.000
H6 1.476 -1.054 0.000
H7 -1.476 1.054 0.000
H8 -1.476 -1.054 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.79081.33101.33101.20361.20362.59492.5949
B21.79081.33101.33102.59492.59491.20361.2036
H31.33101.33101.96962.06382.06382.06382.0638
H41.33101.33101.96962.06382.06382.06382.0638
H51.20362.59492.06382.06382.10902.95123.6273
H61.20362.59492.06382.06382.10903.62732.9512
H72.59491.20362.06382.06382.95123.62732.1090
H82.59491.20362.06382.06383.62732.95122.1090

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.553 B1 H4 B2 84.553
H3 B1 H4 95.447 H3 B1 H5 108.924
H3 B1 H6 108.924 H3 B2 H4 95.447
H3 B2 H7 108.924 H3 B2 H8 108.924
H4 B1 H5 108.924 H4 B1 H6 108.924
H4 B2 H7 108.924 H4 B2 H8 108.924
H5 B1 H6 122.356 H7 B2 H8 122.356
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability