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All results from a given calculation for B2H6 (Diborane)

using model chemistry: PBEPBE/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 PBEPBE/6-311G**
 hartrees
Energy at 0K-53.180826
Energy at 298.15K-53.186569
HF Energy-53.180826
Nuclear repulsion energy31.963996
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 PBEPBE/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 2556 2532 0.00 269.49 0.11 0.21
2 Ag 2134 2115 0.00 81.32 0.06 0.12
3 Ag 1147 1137 0.00 12.01 0.67 0.80
4 Ag 792 785 0.00 17.92 0.18 0.30
5 Au 827 819 0.00 0.00 0.00 0.00
6 B1g 2633 2609 0.00 126.43 0.75 0.86
7 B1g 903 895 0.00 0.89 0.75 0.86
8 B1u 1987 1969 1.82 0.00 0.00 0.00
9 B1u 952 943 13.20 0.00 0.00 0.00
10 B2g 1833 1816 0.00 3.86 0.75 0.86
11 B2g 875 867 0.00 4.18 0.75 0.86
12 B2u 2648 2624 155.09 0.00 0.00 0.00
13 B2u 865 857 0.05 0.00 0.74 0.85
14 B2u 301 298 17.66 0.00 0.00 0.00
15 B3g 940 932 0.00 28.72 0.75 0.86
16 B3u 2543 2520 135.81 0.00 0.00 0.00
17 B3u 1660 1645 353.76 0.00 0.00 0.00
18 B3u 1141 1130 56.32 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13367.7 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 13246.1 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 PBEPBE/6-311G**
ABC
2.64095 0.60933 0.55983

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.881 0.000 0.000
B2 -0.881 0.000 0.000
H3 0.000 0.000 0.988
H4 0.000 0.000 -0.988
H5 1.462 1.046 0.000
H6 1.462 -1.046 0.000
H7 -1.462 1.046 0.000
H8 -1.462 -1.046 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76141.32381.32381.19711.19712.56602.5660
B21.76141.32381.32382.56602.56601.19711.1971
H31.32381.32381.97652.05172.05172.05172.0517
H41.32381.32381.97652.05172.05172.05172.0517
H51.19712.56602.05172.05172.09292.92433.5961
H61.19712.56602.05172.05172.09293.59612.9243
H72.56601.19712.05172.05172.92433.59612.0929
H82.56601.19712.05172.05173.59612.92432.0929

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.413 B1 H4 B2 83.413
H3 B1 H4 96.587 H3 B1 H5 108.853
H3 B1 H6 108.853 H3 B2 H4 96.587
H3 B2 H7 108.853 H3 B2 H8 108.853
H4 B1 H5 108.853 H4 B1 H6 108.853
H4 B2 H7 108.853 H4 B2 H8 108.853
H5 B1 H6 121.884 H7 B2 H8 121.884
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.188      
2 B -0.188      
3 H 0.117      
4 H 0.117      
5 H 0.035      
6 H 0.035      
7 H 0.035      
8 H 0.035      


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 -19.011 0.000 0.000
y 0.000 -17.948 0.000
z 0.000 0.000 -14.936
Traceless
 xyz
x -2.568 0.000 0.000
y 0.000 -0.975 0.000
z 0.000 0.000 3.543
Polar
3z2-r27.086
x2-y2-1.062
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.068 0.000 0.000
y 0.000 4.727 0.000
z 0.000 0.000 3.638


<r2> (average value of r2) Å2
<r2> 33.446
(<r2>)1/2 5.783