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All results from a given calculation for B2H6 (Diborane)

using model chemistry: PBE1PBE/3-21G*

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/3-21G*
 hartrees
Energy at 0K-52.884138
Energy at 298.15K-52.890037
HF Energy-52.884138
Nuclear repulsion energy32.071660
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/3-21G*
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 2669 2562 0.00 209.55 0.11 0.20
2 Ag 2200 2112 0.00 95.80 0.09 0.17
3 Ag 1193 1145 0.00 15.20 0.75 0.86
4 Ag 824 790 0.00 17.45 0.24 0.38
5 Au 888 852 0.00 0.00 0.00 0.00
6 B1g 2760 2649 0.00 89.42 0.75 0.86
7 B1g 911 874 0.00 1.36 0.75 0.86
8 B1u 2004 1924 11.18 0.00 0.00 0.00
9 B1u 998 958 8.81 0.00 0.00 0.00
10 B2g 1893 1817 0.00 5.15 0.75 0.86
11 B2g 906 869 0.00 3.18 0.75 0.86
12 B2u 2774 2663 121.49 0.00 0.00 0.00
13 B2u 939 901 0.13 0.00 0.00 0.00
14 B2u 361 346 10.33 0.00 0.00 0.00
15 B3g 1087 1043 0.00 40.24 0.75 0.86
16 B3u 2658 2551 109.83 0.00 0.00 0.00
17 B3u 1733 1663 426.41 0.00 0.00 0.00
18 B3u 1197 1149 57.96 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13996.5 cm-1
Scaled (by 0.9598) Zero Point Vibrational Energy (zpe) 13433.9 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/3-21G*
ABC
2.65700 0.61313 0.56306

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.879 0.000 0.000
B2 -0.879 0.000 0.000
H3 0.000 0.000 0.984
H4 0.000 0.000 -0.984
H5 1.455 1.044 0.000
H6 1.455 -1.044 0.000
H7 -1.455 1.044 0.000
H8 -1.455 -1.044 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75801.31911.31911.19241.19242.55672.5567
B21.75801.31911.31912.55672.55671.19241.1924
H31.31911.31911.96702.04302.04302.04302.0430
H41.31911.31911.96702.04302.04302.04302.0430
H51.19242.55672.04302.04302.08822.90963.5814
H61.19242.55672.04302.04302.08823.58142.9096
H72.55671.19242.04302.04302.90963.58142.0882
H82.55671.19242.04302.04303.58142.90962.0882

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.576 B1 H4 B2 83.576
H3 B1 H4 96.424 H3 B1 H5 108.771
H3 B1 H6 108.771 H3 B2 H4 96.424
H3 B2 H7 108.771 H3 B2 H8 108.771
H4 B1 H5 108.771 H4 B1 H6 108.771
H4 B2 H7 108.771 H4 B2 H8 108.771
H5 B1 H6 122.250 H7 B2 H8 122.250
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.301      
2 B -0.301      
3 H 0.116      
4 H 0.116      
5 H 0.093      
6 H 0.093      
7 H 0.093      
8 H 0.093      


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 -18.646 0.000 0.000
y 0.000 -17.980 0.000
z 0.000 0.000 -15.477
Traceless
 xyz
x -1.918 0.000 0.000
y 0.000 -0.918 0.000
z 0.000 0.000 2.836
Polar
3z2-r25.672
x2-y2-0.667
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.333 0.000 0.000
y 0.000 3.694 0.000
z 0.000 0.000 3.099


<r2> (average value of r2) Å2
<r2> 33.335
(<r2>)1/2 5.774