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All results from a given calculation for B2H6 (Diborane)

using model chemistry: B3PW91/aug-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 B3PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-53.263172
Energy at 298.15K-53.268991
HF Energy-53.263172
Nuclear repulsion energy31.898910
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 B3PW91/aug-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 2603 2511 0.00 310.29 0.07 0.12
2 Ag 2162 2085 0.00 88.19 0.04 0.08
3 Ag 1175 1133 0.00 6.62 0.64 0.78
4 Ag 804 775 0.00 19.25 0.15 0.26
5 Au 832 802 0.00 0.00 0.20 0.34
6 B1g 2684 2589 0.00 122.86 0.75 0.86
7 B1g 919 886 0.00 0.40 0.75 0.86
8 B1u 2012 1940 5.65 0.00 0.00 0.00
9 B1u 970 936 19.99 0.00 0.75 0.86
10 B2g 1862 1796 0.00 3.40 0.75 0.86
11 B2g 880 849 0.00 0.02 0.75 0.86
12 B2u 2702 2606 168.16 0.00 0.00 0.00
13 B2u 902 870 0.08 0.00 0.00 0.00
14 B2u 329 317 16.83 0.00 0.00 0.00
15 B3g 981 946 0.00 5.83 0.75 0.86
16 B3u 2589 2497 149.17 0.00 0.00 0.00
17 B3u 1696 1636 426.64 0.00 0.00 0.00
18 B3u 1164 1123 65.33 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13631.8 cm-1
Scaled (by 0.9646) Zero Point Vibrational Energy (zpe) 13149.2 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 B3PW91/aug-cc-pVDZ
ABC
2.63693 0.60558 0.55633

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.884 0.000 0.000
B2 -0.884 0.000 0.000
H3 0.000 0.000 0.987
H4 0.000 0.000 -0.987
H5 1.466 1.048 0.000
H6 1.466 -1.048 0.000
H7 -1.466 1.048 0.000
H8 -1.466 -1.048 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76841.32521.32521.19861.19862.57292.5729
B21.76841.32521.32522.57292.57291.19861.1986
H31.32521.32521.97432.05452.05452.05452.0545
H41.32521.32521.97432.05452.05452.05452.0545
H51.19862.57292.05452.05452.09632.93123.6037
H61.19862.57292.05452.05452.09633.60372.9312
H72.57291.19862.05452.05452.93123.60372.0963
H82.57291.19862.05452.05453.60372.93122.0963

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.701 B1 H4 B2 83.701
H3 B1 H4 96.299 H3 B1 H5 108.883
H3 B1 H6 108.883 H3 B2 H4 96.299
H3 B2 H7 108.883 H3 B2 H8 108.883
H4 B1 H5 108.883 H4 B1 H6 108.883
H4 B2 H7 108.883 H4 B2 H8 108.883
H5 B1 H6 121.964 H7 B2 H8 121.964
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -2.065      
2 B -2.065      
3 H 0.722      
4 H 0.722      
5 H 0.671      
6 H 0.671      
7 H 0.671      
8 H 0.671      


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
Primitive
 xyz
x -18.831 0.000 0.000
y 0.000 -17.922 0.000
z 0.000 0.000 -14.896
Traceless
 xyz
x -2.422 0.000 0.000
y 0.000 -1.058 0.000
z 0.000 0.000 3.480
Polar
3z2-r26.961
x2-y2-0.909
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.066 0.000 0.000
y 0.000 4.971 0.000
z 0.000 0.000 4.272


<r2> (average value of r2) Å2
<r2> 33.506
(<r2>)1/2 5.788