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All results from a given calculation for B2H6 (Diborane)

using model chemistry: PBEPBEultrafine/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at PBEPBEultrafine/Def2TZVPP
 hartrees
Energy at 0K-53.187984
Energy at 298.15K-53.193734
HF Energy-53.187984
Nuclear repulsion energy32.029216
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 PBEPBEultrafine/Def2TZVPP
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 2560 2560 0.00 285.41 0.09 0.16
2 Ag 2143 2143 0.00 77.76 0.05 0.10
3 Ag 1151 1151 0.00 8.80 0.65 0.79
4 Ag 795 795 0.00 18.56 0.17 0.29
5 Au 827 827 0.00 0.00 0.00 0.00
6 B1g 2637 2637 0.00 113.63 0.75 0.86
7 B1g 905 905 0.00 0.99 0.75 0.86
8 B1u 1998 1998 1.87 0.00 0.00 0.00
9 B1u 953 953 17.66 0.00 0.00 0.00
10 B2g 1849 1849 0.00 3.21 0.75 0.86
11 B2g 877 877 0.00 0.14 0.75 0.86
12 B2u 2652 2652 151.63 0.00 0.00 0.00
13 B2u 870 870 0.00 0.00 0.00 0.00
14 B2u 307 307 17.54 0.00 0.00 0.00
15 B3g 939 939 0.00 6.81 0.75 0.86
16 B3u 2548 2548 134.72 0.00 0.00 0.00
17 B3u 1674 1674 344.35 0.00 0.00 0.00
18 B3u 1146 1146 54.62 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13415.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13415.1 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 PBEPBEultrafine/Def2TZVPP
ABC
2.65045 0.61235 0.56247

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/Def2TZVPP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.878 0.000 0.000
B2 -0.878 0.000 0.000
H3 0.000 0.000 0.986
H4 0.000 0.000 -0.986
H5 1.460 1.045 0.000
H6 1.460 -1.045 0.000
H7 -1.460 1.045 0.000
H8 -1.460 -1.045 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75591.32021.32021.19621.19622.56122.5612
B21.75591.32021.32022.56122.56121.19621.1962
H31.32021.32021.97192.04852.04852.04852.0485
H41.32021.32021.97192.04852.04852.04852.0485
H51.19622.56122.04852.04852.08962.92083.5913
H61.19622.56122.04852.04852.08963.59132.9208
H72.56121.19622.04852.04852.92083.59132.0896
H82.56121.19622.04852.04853.59132.92082.0896

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.367 B1 H4 B2 83.367
H3 B1 H4 96.633 H3 B1 H5 108.893
H3 B1 H6 108.893 H3 B2 H4 96.633
H3 B2 H7 108.893 H3 B2 H8 108.893
H4 B1 H5 108.893 H4 B1 H6 108.893
H4 B2 H7 108.893 H4 B2 H8 108.893
H5 B1 H6 121.726 H7 B2 H8 121.726
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.147      
2 B -0.147      
3 H 0.075      
4 H 0.075      
5 H 0.036      
6 H 0.036      
7 H 0.036      
8 H 0.036      


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 -19.001 0.000 0.000
y 0.000 -17.990 0.000
z 0.000 0.000 -14.913
Traceless
 xyz
x -2.549 0.000 0.000
y 0.000 -1.033 0.000
z 0.000 0.000 3.582
Polar
3z2-r27.164
x2-y2-1.011
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.079 0.000 0.000
y 0.000 4.862 0.000
z 0.000 0.000 3.998


<r2> (average value of r2) Å2
<r2> 33.356
(<r2>)1/2 5.775