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All results from a given calculation for B2H6 (Diborane)

using model chemistry: PBE1PBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at PBE1PBE/6-31G*
 hartrees
Energy at 0K-53.190377
Energy at 298.15K-53.196215
HF Energy-53.190377
Nuclear repulsion energy32.090684
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 PBE1PBE/6-31G*
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 2655 2523 0.00 213.13 0.13 0.23
2 Ag 2228 2117 0.00 79.89 0.09 0.16
3 Ag 1198 1138 0.00 14.52 0.73 0.84
4 Ag 822 782 0.00 16.22 0.22 0.36
5 Au 856 813 0.00 0.00 0.00 0.00
6 B1g 2736 2600 0.00 102.71 0.75 0.86
7 B1g 939 892 0.00 1.92 0.75 0.86
8 B1u 2073 1970 11.44 0.00 0.00 0.00
9 B1u 990 941 16.13 0.00 0.00 0.00
10 B2g 1907 1812 0.00 5.12 0.75 0.86
11 B2g 902 857 0.00 4.93 0.75 0.86
12 B2u 2750 2613 162.71 0.00 0.00 0.00
13 B2u 940 894 0.32 0.00 0.00 0.00
14 B2u 326 310 13.80 0.00 0.00 0.00
15 B3g 1032 981 0.00 36.82 0.75 0.86
16 B3u 2641 2509 141.57 0.00 0.00 0.00
17 B3u 1746 1659 422.80 0.00 0.00 0.00
18 B3u 1192 1133 64.57 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13964.9 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 13270.8 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 PBE1PBE/6-31G*
ABC
2.66227 0.61416 0.56391

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.877 0.000 0.000
B2 -0.877 0.000 0.000
H3 0.000 0.000 0.982
H4 0.000 0.000 -0.982
H5 1.457 1.043 0.000
H6 1.457 -1.043 0.000
H7 -1.457 1.043 0.000
H8 -1.457 -1.043 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75471.31671.31671.19361.19362.55692.5569
B21.75471.31671.31672.55692.55691.19361.1936
H31.31671.31671.96362.04342.04342.04342.0434
H41.31671.31671.96362.04342.04342.04342.0434
H51.19362.55692.04342.04342.08692.91383.5840
H61.19362.55692.04342.04342.08693.58402.9138
H72.55691.19362.04342.04342.91383.58402.0869
H82.55691.19362.04342.04343.58402.91382.0869

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.568 B1 H4 B2 83.568
H3 B1 H4 96.432 H3 B1 H5 108.877
H3 B1 H6 108.877 H3 B2 H4 96.432
H3 B2 H7 108.877 H3 B2 H8 108.877
H4 B1 H5 108.877 H4 B1 H6 108.877
H4 B2 H7 108.877 H4 B2 H8 108.877
H5 B1 H6 121.901 H7 B2 H8 121.901
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.176      
2 B -0.176      
3 H 0.109      
4 H 0.109      
5 H 0.033      
6 H 0.033      
7 H 0.033      
8 H 0.033      


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 -18.438 0.000 0.000
y 0.000 -17.451 0.000
z 0.000 0.000 -14.615
Traceless
 xyz
x -2.405 0.000 0.000
y 0.000 -0.924 0.000
z 0.000 0.000 3.329
Polar
3z2-r26.659
x2-y2-0.987
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.367 0.000 0.000
y 0.000 3.994 0.000
z 0.000 0.000 3.139


<r2> (average value of r2) Å2
<r2> 32.985
(<r2>)1/2 5.743