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All results from a given calculation for B2H6 (Diborane)

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-53.208243
Energy at 298.15K-53.214167
HF Energy-53.208243
Nuclear repulsion energy32.068584
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 B1B95/6-31G
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 2670 2546 0.00 220.03 0.12 0.22
2 Ag 2203 2101 0.00 95.07 0.09 0.16
3 Ag 1205 1149 0.00 17.32 0.72 0.84
4 Ag 814 777 0.00 17.53 0.22 0.36
5 Au 872 832 0.00 0.00 0.00 0.00
6 B1g 2755 2627 0.00 102.52 0.75 0.86
7 B1g 951 907 0.00 2.18 0.75 0.86
8 B1u 2015 1922 14.56 0.00 0.00 0.00
9 B1u 1005 958 10.73 0.00 0.00 0.00
10 B2g 1887 1799 0.00 5.89 0.75 0.86
11 B2g 906 865 0.00 5.99 0.75 0.86
12 B2u 2770 2641 180.37 0.00 0.00 0.00
13 B2u 978 933 1.02 0.00 0.00 0.00
14 B2u 374 357 10.10 0.00 0.00 0.00
15 B3g 1063 1014 0.00 45.28 0.75 0.86
16 B3u 2655 2532 141.10 0.00 0.00 0.00
17 B3u 1732 1652 462.94 0.00 0.00 0.00
18 B3u 1206 1150 69.50 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14030.0 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 13380.5 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 B1B95/6-31G
ABC
2.69781 0.60698 0.55859

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.884 0.000 0.000
B2 -0.884 0.000 0.000
H3 0.000 0.000 0.976
H4 0.000 0.000 -0.976
H5 1.463 1.036 0.000
H6 1.463 -1.036 0.000
H7 -1.463 1.036 0.000
H8 -1.463 -1.036 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76881.31731.31731.18671.18672.56602.5660
B21.76881.31731.31732.56602.56601.18671.1867
H31.31731.31731.95262.04142.04142.04142.0414
H41.31731.31731.95262.04142.04142.04142.0414
H51.18672.56602.04142.04142.07212.92623.5856
H61.18672.56602.04142.04142.07213.58562.9262
H72.56601.18672.04142.04142.92623.58562.0721
H82.56601.18672.04142.04143.58562.92622.0721

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.343 B1 H4 B2 84.343
H3 B1 H4 95.657 H3 B1 H5 109.111
H3 B1 H6 109.111 H3 B2 H4 95.657
H3 B2 H7 109.111 H3 B2 H8 109.111
H4 B1 H5 109.111 H4 B1 H6 109.111
H4 B2 H7 109.111 H4 B2 H8 109.111
H5 B1 H6 121.626 H7 B2 H8 121.626
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.082      
2 B -0.082      
3 H 0.047      
4 H 0.047      
5 H 0.017      
6 H 0.017      
7 H 0.017      
8 H 0.017      


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 -18.427 0.000 0.000
y 0.000 -17.514 0.000
z 0.000 0.000 -14.914
Traceless
 xyz
x -2.213 0.000 0.000
y 0.000 -0.843 0.000
z 0.000 0.000 3.057
Polar
3z2-r26.113
x2-y2-0.913
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.384 0.000 0.000
y 0.000 3.903 0.000
z 0.000 0.000 3.083


<r2> (average value of r2) Å2
<r2> 33.172
(<r2>)1/2 5.760