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All results from a given calculation for B2H6 (Diborane)

using model chemistry: TPSSh/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at TPSSh/aug-cc-pVQZ
 hartrees
Energy at 0K-53.325451
Energy at 298.15K-53.331335
HF Energy-53.325451
Nuclear repulsion energy32.117199
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 TPSSh/aug-cc-pVQZ
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 2628 2628 0.00 308.48 0.06 0.12
2 Ag 2183 2183 0.00 82.18 0.05 0.10
3 Ag 1211 1211 0.00 5.93 0.64 0.78
4 Ag 799 799 0.00 18.66 0.14 0.25
5 Au 856 856 0.00 0.00 0.14 0.00
6 B1g 2703 2703 0.00 115.39 0.75 0.86
7 B1g 940 940 0.00 0.51 0.75 0.86
8 B1u 2002 2002 10.85 0.00 0.00 0.00
9 B1u 1001 1001 23.13 0.00 0.00 0.00
10 B2g 1880 1880 0.00 3.18 0.75 0.86
11 B2g 889 889 0.00 0.06 0.75 0.86
12 B2u 2718 2718 176.36 0.00 0.00 0.00
13 B2u 967 967 0.59 0.00 0.00 0.00
14 B2u 345 345 15.25 0.00 0.00 0.00
15 B3g 1043 1043 0.00 5.58 0.75 0.86
16 B3u 2614 2614 145.75 0.00 0.00 0.00
17 B3u 1739 1739 459.71 0.00 0.00 0.00
18 B3u 1200 1200 83.49 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13859.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13859.2 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 TPSSh/aug-cc-pVQZ
ABC
2.69469 0.61001 0.56076

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/aug-cc-pVQZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.883 0.000 0.000
B2 -0.883 0.000 0.000
H3 0.000 0.000 0.975
H4 0.000 0.000 -0.975
H5 1.457 1.038 0.000
H6 1.457 -1.038 0.000
H7 -1.457 1.038 0.000
H8 -1.457 -1.038 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76571.31501.31501.18611.18612.55982.5598
B21.76571.31501.31502.55982.55981.18611.1861
H31.31501.31501.94912.03722.03722.03722.0372
H41.31501.31501.94912.03722.03722.03722.0372
H51.18612.55982.03722.03722.07552.91433.5779
H61.18612.55982.03722.03722.07553.57792.9143
H72.55981.18612.03722.03722.91433.57792.0755
H82.55981.18612.03722.03723.57792.91432.0755

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.345 B1 H4 B2 84.345
H3 B1 H4 95.655 H3 B1 H5 108.972
H3 B1 H6 108.972 H3 B2 H4 95.655
H3 B2 H7 108.972 H3 B2 H8 108.972
H4 B1 H5 108.972 H4 B1 H6 108.972
H4 B2 H7 108.972 H4 B2 H8 108.972
H5 B1 H6 122.075 H7 B2 H8 122.075
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.094      
2 B 0.094      
3 H 0.252      
4 H 0.252      
5 H -0.173      
6 H -0.173      
7 H -0.173      
8 H -0.173      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.934 0.000 0.000
y 0.000 4.816 0.000
z 0.000 0.000 4.159


<r2> (average value of r2) Å2
<r2> 33.167
(<r2>)1/2 5.759