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All results from a given calculation for B2H6 (Diborane)

using model chemistry: CCSD/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-53.105631
Energy at 298.15K-53.111586
HF Energy-52.824326
Nuclear repulsion energy32.118907
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/6-31G(2df,p)
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 2679 2533        
2 Ag 2214 2094        
3 Ag 1229 1162        
4 Ag 828 782        
5 Au 865 818        
6 B1g 2761 2611        
7 B1g 955 903        
8 B1u 2039 1928 13.69      
9 B1u 1017 961 25.37      
10 B2g 1907 1803        
11 B2g 911 861        
12 B2u 2773 2622 132.93      
13 B2u 1009 954 0.56      
14 B2u 378 358 16.83      
15 B3g 1094 1034        
16 B3u 2665 2520 130.35      
17 B3u 1774 1678 497.15      
18 B3u 1216 1150 75.40      

Unscaled Zero Point Vibrational Energy (zpe) 14157.2 cm-1
Scaled (by 0.9455) Zero Point Vibrational Energy (zpe) 13385.7 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 CCSD/6-31G(2df,p)
ABC
2.68871 0.61098 0.56137

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G(2df,p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.882 0.000 0.000
B2 -0.882 0.000 0.000
H3 0.000 0.000 0.975
H4 0.000 0.000 -0.975
H5 1.456 1.039 0.000
H6 1.456 -1.039 0.000
H7 -1.456 1.039 0.000
H8 -1.456 -1.039 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76411.31471.31471.18721.18722.55852.5585
B21.76411.31471.31472.55852.55851.18721.1872
H31.31471.31471.94982.03722.03722.03722.0372
H41.31471.31471.94982.03722.03722.03722.0372
H51.18722.55852.03722.03722.07852.91183.5775
H61.18722.55852.03722.03722.07853.57752.9118
H72.55851.18722.03722.03722.91183.57752.0785
H82.55851.18722.03722.03723.57752.91182.0785

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.274 B1 H4 B2 84.274
H3 B1 H4 95.726 H3 B1 H5 108.923
H3 B1 H6 108.923 H3 B2 H4 95.726
H3 B2 H7 108.923 H3 B2 H8 108.923
H4 B1 H5 108.923 H4 B1 H6 108.923
H4 B2 H7 108.923 H4 B2 H8 108.923
H5 B1 H6 122.187 H7 B2 H8 122.187
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability