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All results from a given calculation for B2H6 (Diborane)

using model chemistry: B3PW91/aug-cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-53.283054
Energy at 298.15K-53.288909
HF Energy-53.283054
Nuclear repulsion energy32.168762
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-pVTZ
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 2614 2522 0.00 308.83 0.06 0.12
2 Ag 2182 2105 0.00 85.57 0.05 0.09
3 Ag 1191 1150 0.00 6.47 0.63 0.77
4 Ag 812 783 0.00 18.45 0.14 0.25
5 Au 848 818 0.00 0.00 0.18 0.00
6 B1g 2690 2596 0.00 117.41 0.75 0.86
7 B1g 930 898 0.00 0.43 0.75 0.86
8 B1u 2022 1952 4.68 0.00 0.00 0.00
9 B1u 981 947 21.37 0.00 0.00 0.00
10 B2g 1877 1811 0.00 3.46 0.75 0.86
11 B2g 895 864 0.00 0.03 0.75 0.86
12 B2u 2705 2611 162.27 0.00 0.00 0.00
13 B2u 921 889 0.05 0.00 0.00 0.00
14 B2u 337 325 17.15 0.00 0.00 0.00
15 B3g 997 962 0.00 5.64 0.75 0.86
16 B3u 2600 2509 142.50 0.00 0.00 0.00
17 B3u 1711 1652 411.80 0.00 0.00 0.00
18 B3u 1183 1141 64.29 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13747.0 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 13267.3 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-pVTZ
ABC
2.68295 0.61609 0.56623

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.876 0.000 0.000
B2 -0.876 0.000 0.000
H3 0.000 0.000 0.980
H4 0.000 0.000 -0.980
H5 1.455 1.038 0.000
H6 1.455 -1.038 0.000
H7 -1.455 1.038 0.000
H8 -1.455 -1.038 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75181.31461.31461.18891.18892.55162.5516
B21.75181.31461.31462.55162.55161.18891.1889
H31.31461.31461.96062.03862.03862.03862.0386
H41.31461.31461.96062.03862.03862.03862.0386
H51.18892.55162.03862.03862.07672.90993.5749
H61.18892.55162.03862.03862.07673.57492.9099
H72.55161.18892.03862.03862.90993.57492.0767
H82.55161.18892.03862.03863.57492.90992.0767

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.561 B1 H4 B2 83.561
H3 B1 H4 96.439 H3 B1 H5 108.936
H3 B1 H6 108.936 H3 B2 H4 96.439
H3 B2 H7 108.936 H3 B2 H8 108.936
H4 B1 H5 108.936 H4 B1 H6 108.936
H4 B2 H7 108.936 H4 B2 H8 108.936
H5 B1 H6 121.705 H7 B2 H8 121.705
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.067      
2 B -0.067      
3 H 0.102      
4 H 0.102      
5 H -0.017      
6 H -0.017      
7 H -0.017      
8 H -0.017      


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 -18.767 0.000 0.000
y 0.000 -17.796 0.000
z 0.000 0.000 -14.742
Traceless
 xyz
x -2.497 0.000 0.000
y 0.000 -1.042 0.000
z 0.000 0.000 3.539
Polar
3z2-r27.078
x2-y2-0.970
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.975 0.000 0.000
y 0.000 4.861 0.000
z 0.000 0.000 4.196


<r2> (average value of r2) Å2
<r2> 33.055
(<r2>)1/2 5.749