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All results from a given calculation for B2H6 (Diborane)

using model chemistry: TPSSh/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 TPSSh/6-311G**
 hartrees
Energy at 0K-53.314397
Energy at 298.15K-53.320274
HF Energy-53.314397
Nuclear repulsion energy32.032546
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 TPSSh/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 2623 2623 0.00 259.93 0.11 0.21
2 Ag 2173 2173 0.00 78.23 0.07 0.13
3 Ag 1207 1207 0.00 10.08 0.70 0.82
4 Ag 796 796 0.00 18.26 0.18 0.30
5 Au 856 856 0.00 0.00 0.00 0.00
6 B1g 2701 2701 0.00 117.83 0.75 0.86
7 B1g 938 938 0.00 0.96 0.75 0.86
8 B1u 1991 1991 12.07 0.00 0.00 0.00
9 B1u 1001 1001 17.38 0.00 0.00 0.00
10 B2g 1869 1869 0.00 4.32 0.75 0.86
11 B2g 889 889 0.00 3.57 0.75 0.86
12 B2u 2715 2715 184.54 0.00 0.00 0.00
13 B2u 965 965 0.41 0.00 0.00 0.00
14 B2u 341 341 15.05 0.00 0.00 0.00
15 B3g 1044 1044 0.00 28.59 0.75 0.86
16 B3u 2609 2609 148.41 0.00 0.00 0.00
17 B3u 1724 1724 471.64 0.00 0.00 0.00
18 B3u 1194 1194 85.34 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13817.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13817.7 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 TPSSh/6-311G**
ABC
2.68141 0.60633 0.55749

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.886 0.000 0.000
B2 -0.886 0.000 0.000
H3 0.000 0.000 0.977
H4 0.000 0.000 -0.977
H5 1.460 1.040 0.000
H6 1.460 -1.040 0.000
H7 -1.460 1.040 0.000
H8 -1.460 -1.040 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.77211.31931.31931.18791.18792.56612.5661
B21.77211.31931.31932.56612.56611.18791.1879
H31.31931.31931.95492.04162.04162.04162.0416
H41.31931.31931.95492.04162.04162.04162.0416
H51.18792.56612.04162.04162.08022.91963.5849
H61.18792.56612.04162.04162.08023.58492.9196
H72.56611.18792.04162.04162.91963.58492.0802
H82.56611.18792.04162.04163.58492.91962.0802

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.385 B1 H4 B2 84.385
H3 B1 H4 95.615 H3 B1 H5 108.930
H3 B1 H6 108.930 H3 B2 H4 95.615
H3 B2 H7 108.930 H3 B2 H8 108.930
H4 B1 H5 108.930 H4 B1 H6 108.930
H4 B2 H7 108.930 H4 B2 H8 108.930
H5 B1 H6 122.233 H7 B2 H8 122.233
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.139      
2 B -0.139      
3 H 0.090      
4 H 0.090      
5 H 0.024      
6 H 0.024      
7 H 0.024      
8 H 0.024      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.798 0.000 0.000
y 0.000 4.516 0.000
z 0.000 0.000 3.509


<r2> (average value of r2) Å2
<r2> 33.294
(<r2>)1/2 5.770