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All results from a given calculation for B2H6 (Diborane)

using model chemistry: wB97X-D/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 wB97X-D/3-21G
 hartrees
Energy at 0K-52.954371
Energy at 298.15K-52.960306
HF Energy-52.954371
Nuclear repulsion energy32.037791
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/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 2666 2666 0.00 199.79 0.11 0.20
2 Ag 2192 2192 0.00 93.58 0.09 0.17
3 Ag 1203 1203 0.00 15.22 0.75 0.86
4 Ag 814 814 0.00 19.03 0.25 0.39
5 Au 889 889 0.00 0.00 0.00 0.00
6 B1g 2756 2756 0.00 85.36 0.75 0.86
7 B1g 920 920 0.00 1.31 0.75 0.86
8 B1u 2010 2010 12.91 0.00 0.00 0.00
9 B1u 1006 1006 9.04 0.00 0.00 0.00
10 B2g 1886 1886 0.00 4.71 0.75 0.86
11 B2g 915 915 0.00 3.54 0.75 0.86
12 B2u 2769 2769 127.43 0.00 0.00 0.00
13 B2u 968 968 0.52 0.00 0.00 0.00
14 B2u 376 376 9.64 0.00 0.00 0.00
15 B3g 1109 1109 0.00 42.95 0.75 0.86
16 B3u 2654 2654 117.42 0.00 0.00 0.00
17 B3u 1723 1723 482.41 0.00 0.00 0.00
18 B3u 1207 1207 61.09 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14031.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14031.1 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/3-21G
ABC
2.66253 0.61010 0.56049

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.882 0.000 0.000
B2 -0.882 0.000 0.000
H3 0.000 0.000 0.982
H4 0.000 0.000 -0.982
H5 1.458 1.043 0.000
H6 1.458 -1.043 0.000
H7 -1.458 1.043 0.000
H8 -1.458 -1.043 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76331.31951.31951.19211.19212.56202.5620
B21.76331.31951.31952.56202.56201.19211.1921
H31.31951.31951.96362.04432.04432.04432.0443
H41.31951.31951.96362.04432.04432.04432.0443
H51.19212.56202.04432.04432.08672.91663.5862
H61.19212.56202.04432.04432.08673.58622.9166
H72.56201.19212.04432.04432.91663.58622.0867
H82.56201.19212.04432.04433.58622.91662.0867

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.848 B1 H4 B2 83.848
H3 B1 H4 96.152 H3 B1 H5 108.856
H3 B1 H6 108.856 H3 B2 H4 96.152
H3 B2 H7 108.856 H3 B2 H8 108.856
H4 B1 H5 108.856 H4 B1 H6 108.856
H4 B2 H7 108.856 H4 B2 H8 108.856
H5 B1 H6 122.144 H7 B2 H8 122.144
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.273      
2 B -0.273      
3 H 0.099      
4 H 0.099      
5 H 0.087      
6 H 0.087      
7 H 0.087      
8 H 0.087      


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 -18.656 0.000 0.000
y 0.000 -18.000 0.000
z 0.000 0.000 -15.517
Traceless
 xyz
x -1.897 0.000 0.000
y 0.000 -0.913 0.000
z 0.000 0.000 2.810
Polar
3z2-r25.621
x2-y2-0.656
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.340 0.000 0.000
y 0.000 3.693 0.000
z 0.000 0.000 3.100


<r2> (average value of r2) Å2
<r2> 33.424
(<r2>)1/2 5.781