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All results from a given calculation for B2H6 (Diborane)

using model chemistry: HF/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-52.824434
Energy at 298.15K-52.830463
HF Energy-52.824434
Nuclear repulsion energy32.003085
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/6-31G(2df,p)
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 2719 2462 0.00 209.36 0.12 0.21
2 Ag 2245 2033 0.00 73.47 0.11 0.19
3 Ag 1300 1178 0.00 10.52 0.74 0.85
4 Ag 823 746 0.00 17.98 0.19 0.32
5 Au 890 806 0.00 0.00 0.17 0.29
6 B1g 2793 2529 0.00 97.14 0.75 0.86
7 B1g 993 899 0.00 1.61 0.75 0.86
8 B1u 2019 1829 49.19 0.00 0.00 0.00
9 B1u 1066 965 30.50 0.00 0.00 0.00
10 B2g 1899 1719 0.00 5.58 0.75 0.86
11 B2g 896 812 0.00 0.79 0.75 0.86
12 B2u 2807 2542 217.06 0.00 0.00 0.00
13 B2u 1096 993 3.93 0.00 0.00 0.00
14 B2u 403 365 15.61 0.00 0.00 0.00
15 B3g 1168 1058 0.00 22.83 0.75 0.86
16 B3u 2701 2446 181.75 0.00 0.00 0.00
17 B3u 1788 1619 709.45 0.00 0.00 0.00
18 B3u 1280 1159 128.66 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14444.2 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 13079.2 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 HF/6-31G(2df,p)
ABC
2.70004 0.60152 0.55389

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.891 0.000 0.000
B2 -0.891 0.000 0.000
H3 0.000 0.000 0.975
H4 0.000 0.000 -0.975
H5 1.465 1.036 0.000
H6 1.465 -1.036 0.000
H7 -1.465 1.036 0.000
H8 -1.465 -1.036 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.78101.32061.32061.18441.18442.57292.5729
B21.78101.32061.32062.57292.57291.18441.1844
H31.32061.32061.95032.04192.04192.04192.0419
H41.32061.32061.95032.04192.04192.04192.0419
H51.18442.57292.04192.04192.07202.92923.5879
H61.18442.57292.04192.04192.07203.58792.9292
H72.57291.18442.04192.04192.92923.58792.0720
H82.57291.18442.04192.04193.58792.92922.0720

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.805 B1 H4 B2 84.805
H3 B1 H4 95.195 H3 B1 H5 109.077
H3 B1 H6 109.077 H3 B2 H4 95.195
H3 B2 H7 109.077 H3 B2 H8 109.077
H4 B1 H5 109.077 H4 B1 H6 109.077
H4 B2 H7 109.077 H4 B2 H8 109.077
H5 B1 H6 122.015 H7 B2 H8 122.015
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.075      
2 B -0.075      
3 H 0.097      
4 H 0.097      
5 H -0.011      
6 H -0.011      
7 H -0.011      
8 H -0.011      


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 -18.776 0.000 0.000
y 0.000 -17.896 0.000
z 0.000 0.000 -14.841
Traceless
 xyz
x -2.408 0.000 0.000
y 0.000 -1.088 0.000
z 0.000 0.000 3.495
Polar
3z2-r26.991
x2-y2-0.880
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.209 0.000 0.000
y 0.000 4.020 0.000
z 0.000 0.000 3.324


<r2> (average value of r2) Å2
<r2> 33.430
(<r2>)1/2 5.782