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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-53.172616
Energy at 298.15K-53.178341
HF Energy-53.172616
Nuclear repulsion energy31.934060
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 2549 2523 0.00 251.96 0.12 0.22
2 Ag 2125 2102 0.00 76.71 0.06 0.12
3 Ag 1143 1131 0.00 11.41 0.68 0.81
4 Ag 788 780 0.00 17.28 0.18 0.31
5 Au 828 820 0.00 0.00 0.00 0.00
6 B1g 2627 2600 0.00 119.45 0.75 0.86
7 B1g 905 896 0.00 1.02 0.75 0.86
8 B1u 1990 1970 2.08 0.00 0.00 0.00
9 B1u 947 937 13.65 0.00 0.00 0.00
10 B2g 1824 1805 0.00 3.82 0.75 0.86
11 B2g 875 866 0.00 4.35 0.75 0.86
12 B2u 2642 2615 159.78 0.00 0.00 0.00
13 B2u 873 864 0.00 0.00 0.00 0.00
14 B2u 292 289 17.47 0.00 0.00 0.00
15 B3g 962 952 0.00 29.38 0.75 0.86
16 B3u 2536 2509 141.62 0.00 0.00 0.00
17 B3u 1655 1638 367.29 0.00 0.00 0.00
18 B3u 1137 1126 57.38 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13349.6 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 13210.8 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 PBEPBE/6-311G*
ABC
2.63283 0.60844 0.55888

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 0.882 0.000 0.000
B2 -0.882 0.000 0.000
H3 0.000 0.000 0.989
H4 0.000 0.000 -0.989
H5 1.462 1.048 0.000
H6 1.462 -1.048 0.000
H7 -1.462 1.048 0.000
H8 -1.462 -1.048 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76331.32521.32521.19821.19822.56752.5675
B21.76331.32521.32522.56752.56751.19821.1982
H31.32521.32521.97872.05312.05312.05312.0531
H41.32521.32521.97872.05312.05312.05312.0531
H51.19822.56752.05312.05312.09662.92413.5981
H61.19822.56752.05312.05312.09663.59812.9241
H72.56751.19822.05312.05312.92413.59812.0966
H82.56751.19822.05312.05313.59812.92412.0966

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 108.800
H3 B1 H6 108.800 H3 B2 H4 96.587
H3 B2 H7 108.800 H3 B2 H8 108.800
H4 B1 H5 108.800 H4 B1 H6 108.800
H4 B2 H7 108.800 H4 B2 H8 108.800
H5 B1 H6 122.057 H7 B2 H8 122.057
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 -0.416      
2 B -0.416      
3 H 0.206      
4 H 0.206      
5 H 0.105      
6 H 0.105      
7 H 0.105      
8 H 0.105      


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 -19.071 0.000 0.000
y 0.000 -18.010 0.000
z 0.000 0.000 -15.016
Traceless
 xyz
x -2.558 0.000 0.000
y 0.000 -0.966 0.000
z 0.000 0.000 3.525
Polar
3z2-r27.049
x2-y2-1.061
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.008 0.000 0.000
y 0.000 4.663 0.000
z 0.000 0.000 3.585


<r2> (average value of r2) Å2
<r2> 33.523
(<r2>)1/2 5.790