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All results from a given calculation for B2H6 (Diborane)

using model chemistry: B2PLYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B2PLYP/6-311G*
 hartrees
Energy at 0K-53.188528
Energy at 298.15K-53.194420
HF Energy-53.123828
Nuclear repulsion energy32.104105
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 B2PLYP/6-311G*
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 2630 2630 0.00 238.09 0.13 0.23
2 Ag 2181 2181 0.00 77.42 0.08 0.14
3 Ag 1207 1207 0.00 9.89 0.70 0.83
4 Ag 808 808 0.00 18.08 0.19 0.32
5 Au 860 860 0.00 0.00 0.00 0.00
6 B1g 2709 2709 0.00 109.07 0.75 0.86
7 B1g 946 946 0.00 1.01 0.75 0.86
8 B1u 2012 2012 8.79 0.00 0.00 0.00
9 B1u 996 996 16.75 0.00 0.00 0.00
10 B2g 1867 1867 0.00 5.54 0.75 0.86
11 B2g 898 898 0.00 4.09 0.75 0.86
12 B2u 2724 2724 181.85 0.00 0.00 0.00
13 B2u 969 969 0.85 0.00 0.00 0.00
14 B2u 353 353 15.77 0.00 0.00 0.00
15 B3g 1061 1061 0.00 32.11 0.75 0.86
16 B3u 2615 2615 151.63 0.00 0.00 0.00
17 B3u 1724 1724 510.14 0.00 0.00 0.00
18 B3u 1197 1197 77.09 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13877.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13877.8 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 B2PLYP/6-311G*
ABC
2.68536 0.61064 0.56133

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G*

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 0.978
H4 0.000 0.000 -0.978
H5 1.457 1.039 0.000
H6 1.457 -1.039 0.000
H7 -1.457 1.039 0.000
H8 -1.457 -1.039 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76391.31661.31661.18731.18732.55892.5589
B21.76391.31661.31662.55892.55891.18731.1873
H31.31661.31661.95512.03882.03882.03882.0388
H41.31661.31661.95512.03882.03882.03882.0388
H51.18732.55892.03882.03882.07792.91323.5783
H61.18732.55892.03882.03882.07793.57832.9132
H72.55891.18732.03882.03882.91323.57832.0779
H82.55891.18732.03882.03883.57832.91322.0779

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.114 B1 H4 B2 84.114
H3 B1 H4 95.886 H3 B1 H5 108.918
H3 B1 H6 108.918 H3 B2 H4 95.886
H3 B2 H7 108.918 H3 B2 H8 108.918
H4 B1 H5 108.918 H4 B1 H6 108.918
H4 B2 H7 108.918 H4 B2 H8 108.918
H5 B1 H6 122.107 H7 B2 H8 122.107
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.372      
2 B -0.372      
3 H 0.179      
4 H 0.179      
5 H 0.097      
6 H 0.097      
7 H 0.097      
8 H 0.097      


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 -19.099 0.000 0.000
y 0.000 -18.147 0.000
z 0.000 0.000 -15.114
Traceless
 xyz
x -2.468 0.000 0.000
y 0.000 -1.041 0.000
z 0.000 0.000 3.509
Polar
3z2-r27.018
x2-y2-0.951
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.707 0.000 0.000
y 0.000 4.444 0.000
z 0.000 0.000 3.461


<r2> (average value of r2) Å2
<r2> 33.395
(<r2>)1/2 5.779