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All results from a given calculation for B2H6 (Diborane)

using model chemistry: wB97X-D/CEP-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 wB97X-D/CEP-31G*
 hartrees
Energy at 0K-9.160449
Energy at 298.15K-9.166311
HF Energy-9.160449
Nuclear repulsion energy18.625629
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 wB97X-D/CEP-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 2637 2637 0.00 218.23 0.15 0.26
2 Ag 2105 2105 0.00 61.51 0.21 0.34
3 Ag 1178 1178 0.00 15.30 0.75 0.85
4 Ag 811 811 0.00 19.75 0.33 0.49
5 Au 843 843 0.00 0.00 0.28 0.44
6 B1g 2715 2715 0.00 91.06 0.75 0.86
7 B1g 929 929 0.00 4.70 0.75 0.86
8 B1u 1956 1956 37.09 0.00 0.00 0.00
9 B1u 999 999 4.17 0.00 0.75 0.86
10 B2g 1870 1870 0.00 8.66 0.75 0.86
11 B2g 892 892 0.00 0.02 0.75 0.86
12 B2u 2730 2730 224.69 0.00 0.00 0.00
13 B2u 972 972 0.93 0.00 0.00 0.00
14 B2u 351 351 13.10 0.00 0.00 0.00
15 B3g 1080 1080 0.00 9.14 0.75 0.86
16 B3u 2617 2617 184.52 0.00 0.00 0.00
17 B3u 1741 1741 620.54 0.00 0.00 0.00
18 B3u 1163 1163 69.07 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13794.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13794.3 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 wB97X-D/CEP-31G*
ABC
2.63863 0.58772 0.54001

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.903 0.000 0.000
B2 -0.903 0.000 0.000
H3 0.000 0.000 0.978
H4 0.000 0.000 -0.978
H5 1.477 1.052 0.000
H6 1.477 -1.052 0.000
H7 -1.477 1.052 0.000
H8 -1.477 -1.052 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.80651.33121.33121.19821.19822.60212.6021
B21.80651.33121.33122.60212.60211.19821.1982
H31.33121.33121.95582.06002.06002.06002.0600
H41.33121.33121.95582.06002.06002.06002.0600
H51.19822.60212.06002.06002.10402.95353.6263
H61.19822.60212.06002.06002.10403.62632.9535
H72.60211.19822.06002.06002.95353.62632.1040
H82.60211.19822.06002.06003.62632.95352.1040

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 85.456 B1 H4 B2 85.456
H3 B1 H4 94.544 H3 B1 H5 108.952
H3 B1 H6 108.952 H3 B2 H4 94.544
H3 B2 H7 108.952 H3 B2 H8 108.952
H4 B1 H5 108.952 H4 B1 H6 108.952
H4 B2 H7 108.952 H4 B2 H8 108.952
H5 B1 H6 122.804 H7 B2 H8 122.804
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.506      
2 B -0.506      
3 H 0.201      
4 H 0.201      
5 H 0.152      
6 H 0.152      
7 H 0.152      
8 H 0.152      


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 -18.305 0.000 0.000
y 0.000 -16.904 0.000
z 0.000 0.000 -14.532
Traceless
 xyz
x -2.587 0.000 0.000
y 0.000 -0.486 0.000
z 0.000 0.000 3.073
Polar
3z2-r26.146
x2-y2-1.400
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.139 0.000 0.000
y 0.000 3.151 0.000
z 0.000 0.000 2.782


<r2> (average value of r2) Å2
<r2> 30.313
(<r2>)1/2 5.506