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All results from a given calculation for B2H6 (Diborane)

using model chemistry: CCD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at CCD/3-21G
 hartrees
Energy at 0K-52.663075
Energy at 298.15K-52.669018
HF Energy-52.497215
Nuclear repulsion energy31.872237
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/3-21G
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 2639 2566 0.00      
2 Ag 2177 2117 0.00      
3 Ag 1215 1181 0.00      
4 Ag 815 792 0.00      
5 Au 873 849 0.00      
6 B1g 2730 2655 0.00      
7 B1g 920 894 0.00      
8 B1u 1946 1892 22.57      
9 B1u 977 950 13.90      
10 B2g 1885 1833 0.00      
11 B2g 809 786 0.00      
12 B2u 2739 2664 121.07      
13 B2u 1021 992 3.98      
14 B2u 413 401 8.64      
15 B3g 1099 1068 0.00      
16 B3u 2628 2555 110.58      
17 B3u 1773 1724 540.51      
18 B3u 1215 1181 74.72      

Unscaled Zero Point Vibrational Energy (zpe) 13936.2 cm-1
Scaled (by 0.9723) Zero Point Vibrational Energy (zpe) 13550.2 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 CCD/3-21G
ABC
2.65213 0.60126 0.55204

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.889 0.000 0.000
B2 -0.889 0.000 0.000
H3 0.000 0.000 0.978
H4 0.000 0.000 -0.978
H5 1.470 1.048 0.000
H6 1.470 -1.048 0.000
H7 -1.470 1.048 0.000
H8 -1.470 -1.048 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.77801.32171.32171.19821.19822.58112.5811
B21.77801.32171.32172.58112.58111.19821.1982
H31.32171.32171.95622.05312.05312.05312.0531
H41.32171.32171.95622.05312.05312.05312.0531
H51.19822.58112.05312.05312.09612.93943.6102
H61.19822.58112.05312.05312.09613.61022.9394
H72.58111.19822.05312.05312.93943.61022.0961
H82.58111.19822.05312.05313.61022.93942.0961

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.535 B1 H4 B2 84.535
H3 B1 H4 95.465 H3 B1 H5 109.026
H3 B1 H6 109.026 H3 B2 H4 95.465
H3 B2 H7 109.026 H3 B2 H8 109.026
H4 B1 H5 109.026 H4 B1 H6 109.026
H4 B2 H7 109.026 H4 B2 H8 109.026
H5 B1 H6 122.017 H7 B2 H8 122.017
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability