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All results from a given calculation for B2H6 (Diborane)

using model chemistry: CCSD(T)/6-31G*

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(T)/6-31G*
 hartrees
Energy at 0K-53.033387
Energy at 298.15K-53.039288
HF Energy-52.812072
Nuclear repulsion energy32.068653
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(T)/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 Ag 2653 2552        
2 Ag 2238 2153        
3 Ag 1222 1176        
4 Ag 831 799        
5 Au 858 826        
6 B1g 2734 2630        
7 B1g 954 918        
8 B1u 2071 1993        
9 B1u 997 959        
10 B2g 1926 1853        
11 B2g 880 847        
12 B2u 2745 2641        
13 B2u 991 953        
14 B2u 362 348        
15 B3g 1062 1022        
16 B3u 2638 2538        
17 B3u 1797 1729        
18 B3u 1214 1168        

Unscaled Zero Point Vibrational Energy (zpe) 14086.1 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 13552.2 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(T)/6-31G*
ABC
2.66895 0.61198 0.56181

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.879 0.000 0.000
B2 -0.879 0.000 0.000
H3 0.000 0.000 0.978
H4 0.000 0.000 -0.978
H5 1.462 1.043 0.000
H6 1.462 -1.043 0.000
H7 -1.462 1.043 0.000
H8 -1.462 -1.043 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75771.31491.31491.19501.19502.56242.5624
B21.75771.31491.31492.56242.56241.19501.1950
H31.31491.31491.95612.04482.04482.04482.0448
H41.31491.31491.95612.04482.04482.04482.0448
H51.19502.56242.04482.04482.08662.92303.5914
H61.19502.56242.04482.04482.08663.59142.9230
H72.56241.19502.04482.04482.92303.59142.0866
H82.56241.19502.04482.04483.59142.92302.0866

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.884 B1 H4 B2 83.884
H3 B1 H4 96.116 H3 B1 H5 109.020
H3 B1 H6 109.020 H3 B2 H4 96.116
H3 B2 H7 109.020 H3 B2 H8 109.020
H4 B1 H5 109.020 H4 B1 H6 109.020
H4 B2 H7 109.020 H4 B2 H8 109.020
H5 B1 H6 121.635 H7 B2 H8 121.635
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability