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All results from a given calculation for B2H6 (Diborane)

using model chemistry: HF/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at HF/6-311+G(3df,2p)
 hartrees
Energy at 0K-52.833554
Energy at 298.15K-52.839590
HF Energy-52.833554
Nuclear repulsion energy32.059484
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 HF/6-311+G(3df,2p)
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 2699 2453 0.00 291.90 0.07 0.13
2 Ag 2238 2034 0.00 81.15 0.07 0.12
3 Ag 1296 1177 0.00 4.13 0.73 0.85
4 Ag 821 746 0.00 19.83 0.14 0.24
5 Au 889 808 0.00 0.00 0.59 0.00
6 B1g 2767 2514 0.00 106.68 0.75 0.86
7 B1g 991 901 0.00 0.52 0.75 0.86
8 B1u 2013 1829 38.08 0.00 0.00 0.00
9 B1u 1061 964 27.57 0.00 0.00 0.00
10 B2g 1898 1725 0.00 4.18 0.75 0.86
11 B2g 899 816 0.00 0.32 0.75 0.86
12 B2u 2783 2528 247.90 0.00 0.00 0.00
13 B2u 1091 991 3.74 0.00 0.00 0.00
14 B2u 407 370 15.14 0.00 0.00 0.00
15 B3g 1158 1052 0.00 6.17 0.75 0.86
16 B3u 2680 2435 184.20 0.00 0.00 0.00
17 B3u 1784 1621 724.29 0.00 0.00 0.00
18 B3u 1276 1160 127.16 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14374.9 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 13061.1 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 HF/6-311+G(3df,2p)
ABC
2.70795 0.60406 0.55621

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.888 0.000 0.000
B2 -0.888 0.000 0.000
H3 0.000 0.000 0.974
H4 0.000 0.000 -0.974
H5 1.462 1.034 0.000
H6 1.462 -1.034 0.000
H7 -1.462 1.034 0.000
H8 -1.462 -1.034 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.77651.31821.31821.18301.18302.56822.5682
B21.77651.31821.31822.56822.56821.18301.1830
H31.31821.31821.94802.03892.03892.03892.0389
H41.31821.31821.94802.03892.03892.03892.0389
H51.18302.56822.03892.03892.06872.92483.5825
H61.18302.56822.03892.03892.06873.58252.9248
H72.56821.18302.03892.03892.92483.58252.0687
H82.56821.18302.03892.03893.58252.92482.0687

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.728 B1 H4 B2 84.728
H3 B1 H4 95.272 H3 B1 H5 109.088
H3 B1 H6 109.088 H3 B2 H4 95.272
H3 B2 H7 109.088 H3 B2 H8 109.088
H4 B1 H5 109.088 H4 B1 H6 109.088
H4 B2 H7 109.088 H4 B2 H8 109.088
H5 B1 H6 121.933 H7 B2 H8 121.933
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.420      
2 B -0.420      
3 H 0.206      
4 H 0.206      
5 H 0.107      
6 H 0.107      
7 H 0.107      
8 H 0.107      


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 -18.938 0.000 0.000
y 0.000 -18.178 0.000
z 0.000 0.000 -15.078
Traceless
 xyz
x -2.310 0.000 0.000
y 0.000 -1.170 0.000
z 0.000 0.000 3.480
Polar
3z2-r26.960
x2-y2-0.760
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.599 0.000 0.000
y 0.000 4.567 0.000
z 0.000 0.000 4.011


<r2> (average value of r2) Å2
<r2> 33.488
(<r2>)1/2 5.787