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All results from a given calculation for B2H6 (Diborane)

using model chemistry: BLYP/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 BLYP/6-311G**
 hartrees
Energy at 0K-53.237824
Energy at 298.15K-53.243641
HF Energy-53.237824
Nuclear repulsion energy31.943006
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 BLYP/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 2561 2551 0.00 267.99 0.11 0.20
2 Ag 2118 2110 0.00 75.98 0.08 0.14
3 Ag 1169 1165 0.00 11.63 0.67 0.80
4 Ag 771 768 0.00 18.21 0.18 0.30
5 Au 829 826 0.00 0.00 0.00 0.00
6 B1g 2635 2625 0.00 126.07 0.75 0.86
7 B1g 916 913 0.00 0.95 0.75 0.86
8 B1u 1935 1927 7.40 0.00 0.00 0.00
9 B1u 970 966 16.35 0.00 0.00 0.00
10 B2g 1795 1788 0.00 4.57 0.75 0.86
11 B2g 870 867 0.00 3.71 0.75 0.86
12 B2u 2650 2639 175.39 0.00 0.00 0.00
13 B2u 918 914 0.09 0.00 0.00 0.00
14 B2u 344 342 16.36 0.00 0.00 0.00
15 B3g 983 979 0.00 29.99 0.75 0.86
16 B3u 2550 2540 143.14 0.00 0.00 0.00
17 B3u 1654 1648 425.79 0.00 0.00 0.00
18 B3u 1162 1158 74.56 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13414.1 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 13361.8 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 BLYP/6-311G**
ABC
2.67324 0.60247 0.55418

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.888 0.000 0.000
B2 -0.888 0.000 0.000
H3 0.000 0.000 0.980
H4 0.000 0.000 -0.980
H5 1.467 1.041 0.000
H6 1.467 -1.041 0.000
H7 -1.467 1.041 0.000
H8 -1.467 -1.041 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.77631.32231.32231.19161.19162.57532.5753
B21.77631.32231.32232.57532.57531.19161.1916
H31.32231.32231.95912.04862.04862.04862.0486
H41.32231.32231.95912.04862.04862.04862.0486
H51.19162.57532.04862.04862.08282.93453.5985
H61.19162.57532.04862.04862.08283.59852.9345
H72.57531.19162.04862.04862.93453.59852.0828
H82.57531.19162.04862.04863.59852.93452.0828

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.395 B1 H4 B2 84.395
H3 B1 H4 95.605 H3 B1 H5 109.053
H3 B1 H6 109.053 H3 B2 H4 95.605
H3 B2 H7 109.053 H3 B2 H8 109.053
H4 B1 H5 109.053 H4 B1 H6 109.053
H4 B2 H7 109.053 H4 B2 H8 109.053
H5 B1 H6 121.845 H7 B2 H8 121.845
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.072      
2 B -0.072      
3 H 0.069      
4 H 0.069      
5 H 0.002      
6 H 0.002      
7 H 0.002      
8 H 0.002      


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 -19.178 0.000 0.000
y 0.000 -18.155 0.000
z 0.000 0.000 -15.060
Traceless
 xyz
x -2.570 0.000 0.000
y 0.000 -1.036 0.000
z 0.000 0.000 3.606
Polar
3z2-r27.212
x2-y2-1.023
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.029 0.000 0.000
y 0.000 4.678 0.000
z 0.000 0.000 3.621


<r2> (average value of r2) Å2
<r2> 33.664
(<r2>)1/2 5.802