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All results from a given calculation for B2H6 (Diborane)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-53.262340
Energy at 298.15K-53.268184
HF Energy-53.262340
Nuclear repulsion energy32.062281
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 B3PW91/6-31G*
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 2647 2532 0.00      
2 Ag 2216 2120 0.00      
3 Ag 1200 1148 0.00      
4 Ag 812 777 0.00      
5 Au 852 816 0.00      
6 B1g 2727 2609 0.00      
7 B1g 940 899 0.00      
8 B1u 2054 1965 14.03      
9 B1u 991 948 16.96      
10 B2g 1889 1807 0.00      
11 B2g 897 858 0.00      
12 B2u 2740 2622 172.01      
13 B2u 948 907 0.42      
14 B2u 334 319 13.63      
15 B3g 1035 990 0.00      
16 B3u 2633 2519 146.70      
17 B3u 1735 1660 430.49      
18 B3u 1195 1143 68.92      

Unscaled Zero Point Vibrational Energy (zpe) 13921.2 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 13318.4 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 B3PW91/6-31G*
ABC
2.66688 0.61152 0.56168

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.880 0.000 0.000
B2 -0.880 0.000 0.000
H3 0.000 0.000 0.980
H4 0.000 0.000 -0.980
H5 1.459 1.043 0.000
H6 1.459 -1.043 0.000
H7 -1.459 1.043 0.000
H8 -1.459 -1.043 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75961.31731.31731.19301.19302.56112.5611
B21.75961.31731.31732.56112.56111.19301.1930
H31.31731.31731.96092.04412.04412.04412.0441
H41.31731.31731.96092.04412.04412.04412.0441
H51.19302.56112.04412.04412.08552.91883.5873
H61.19302.56112.04412.04412.08553.58732.9188
H72.56111.19302.04412.04412.91883.58732.0855
H82.56111.19302.04412.04413.58732.91882.0855

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.805 B1 H4 B2 83.805
H3 B1 H4 96.195 H3 B1 H5 108.934
H3 B1 H6 108.934 H3 B2 H4 96.195
H3 B2 H7 108.934 H3 B2 H8 108.934
H4 B1 H5 108.934 H4 B1 H6 108.934
H4 B2 H7 108.934 H4 B2 H8 108.934
H5 B1 H6 121.866 H7 B2 H8 121.866
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.159      
2 B -0.159      
3 H 0.105      
4 H 0.105      
5 H 0.027      
6 H 0.027      
7 H 0.027      
8 H 0.027      


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 -0.001 0.000 0.000 0.001


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.400 0.000 0.000
y 0.000 -17.417 0.000
z 0.000 0.000 -14.577
Traceless
 xyz
x -2.403 0.000 0.000
y 0.000 -0.929 0.000
z 0.000 0.000 3.332
Polar
3z2-r26.665
x2-y2-0.983
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.384 0.000 0.000
y 0.000 3.996 0.000
z 0.000 0.000 3.143


<r2> (average value of r2) Å2
<r2> 33.024
(<r2>)1/2 5.747