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All results from a given calculation for B2H6 (Diborane)

using model chemistry: TPSSh/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 TPSSh/6-31G
 hartrees
Energy at 0K-53.278828
Energy at 298.15K-53.284763
HF Energy-53.278828
Nuclear repulsion energy31.955366
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/6-31G
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 2669 2568 0.00 231.77 0.12 0.21
2 Ag 2187 2104 0.00 95.93 0.09 0.17
3 Ag 1217 1171 0.00 17.13 0.72 0.84
4 Ag 795 765 0.00 17.92 0.22 0.36
5 Au 873 840 0.00 0.00 0.00 0.00
6 B1g 2753 2649 0.00 107.62 0.75 0.86
7 B1g 959 923 0.00 2.14 0.75 0.86
8 B1u 1971 1896 25.87 0.00 0.00 0.00
9 B1u 1017 978 12.84 0.00 0.00 0.00
10 B2g 1862 1791 0.00 5.76 0.75 0.86
11 B2g 886 852 0.00 5.60 0.75 0.86
12 B2u 2769 2664 200.46 0.00 0.00 0.00
13 B2u 1007 969 2.43 0.00 0.00 0.00
14 B2u 383 369 9.07 0.00 0.00 0.00
15 B3g 1082 1041 0.00 46.04 0.75 0.86
16 B3u 2655 2554 146.41 0.00 0.00 0.00
17 B3u 1723 1658 505.86 0.00 0.00 0.00
18 B3u 1215 1169 89.97 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14011.2 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 13480.2 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/6-31G
ABC
2.69929 0.59864 0.55103

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.893 0.000 0.000
B2 -0.893 0.000 0.000
H3 0.000 0.000 0.972
H4 0.000 0.000 -0.972
H5 1.468 1.037 0.000
H6 1.468 -1.037 0.000
H7 -1.468 1.037 0.000
H8 -1.468 -1.037 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.78621.32031.32031.18631.18632.57932.5793
B21.78621.32031.32032.57932.57931.18631.1863
H31.32031.32031.94492.04402.04402.04402.0440
H41.32031.32031.94492.04402.04402.04402.0440
H51.18632.57932.04402.04402.07502.93673.5958
H61.18632.57932.04402.04402.07503.59582.9367
H72.57931.18632.04402.04402.93673.59582.0750
H82.57931.18632.04402.04403.59582.93672.0750

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 85.128 B1 H4 B2 85.128
H3 B1 H4 94.872 H3 B1 H5 109.148
H3 B1 H6 109.148 H3 B2 H4 94.872
H3 B2 H7 109.148 H3 B2 H8 109.148
H4 B1 H5 109.148 H4 B1 H6 109.148
H4 B2 H7 109.148 H4 B2 H8 109.148
H5 B1 H6 121.986 H7 B2 H8 121.986
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.050      
2 B -0.050      
3 H 0.036      
4 H 0.036      
5 H 0.007      
6 H 0.007      
7 H 0.007      
8 H 0.007      


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 5.426 0.000 0.000
y 0.000 3.925 0.000
z 0.000 0.000 3.104


<r2> (average value of r2) Å2
<r2> 33.415
(<r2>)1/2 5.781