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All results from a given calculation for B2H6 (Diborane)

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-31G(2df,p)
 hartrees
Energy at 0K-53.296228
Energy at 298.15K-53.302103
HF Energy-53.296228
Nuclear repulsion energy32.071987
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 B3LYPultrafine/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 2636 2544 0.00 207.36 0.12 0.21
2 Ag 2181 2105 0.00 64.38 0.10 0.18
3 Ag 1206 1164 0.00 13.19 0.72 0.84
4 Ag 800 772 0.00 16.67 0.21 0.34
5 Au 845 816 0.00 0.00 0.00 0.00
6 B1g 2714 2619 0.00 100.84 0.75 0.86
7 B1g 938 905 0.00 2.10 0.75 0.86
8 B1u 1997 1927 14.62 0.00 0.00 0.00
9 B1u 998 963 26.14 0.00 0.00 0.00
10 B2g 1854 1789 0.00 4.22 0.75 0.86
11 B2g 889 858 0.00 0.83 0.75 0.86
12 B2u 2728 2632 153.00 0.00 0.00 0.00
13 B2u 954 920 0.10 0.00 0.00 0.00
14 B2u 354 341 17.35 0.00 0.00 0.00
15 B3g 1023 988 0.00 19.54 0.75 0.86
16 B3u 2624 2532 144.76 0.00 0.00 0.00
17 B3u 1717 1657 443.04 0.00 0.00 0.00
18 B3u 1200 1158 75.99 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13829.3 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 13345.3 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 B3LYPultrafine/6-31G(2df,p)
ABC
2.69030 0.60819 0.55924

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G(2df,p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.884 0.000 0.000
B2 -0.884 0.000 0.000
H3 0.000 0.000 0.976
H4 0.000 0.000 -0.976
H5 1.461 1.038 0.000
H6 1.461 -1.038 0.000
H7 -1.461 1.038 0.000
H8 -1.461 -1.038 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76711.31651.31651.18821.18822.56442.5644
B21.76711.31651.31652.56442.56441.18821.1882
H31.31651.31651.95192.04102.04102.04102.0410
H41.31651.31651.95192.04102.04102.04102.0410
H51.18822.56442.04102.04102.07662.92253.5852
H61.18822.56442.04102.04102.07663.58522.9225
H72.56441.18822.04102.04102.92253.58522.0766
H82.56441.18822.04102.04103.58522.92252.0766

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.311 B1 H4 B2 84.311
H3 B1 H4 95.689 H3 B1 H5 109.044
H3 B1 H6 109.044 H3 B2 H4 95.689
H3 B2 H7 109.044 H3 B2 H8 109.044
H4 B1 H5 109.044 H4 B1 H6 109.044
H4 B2 H7 109.044 H4 B2 H8 109.044
H5 B1 H6 121.820 H7 B2 H8 121.820
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.095      
2 B -0.095      
3 H 0.135      
4 H 0.135      
5 H -0.020      
6 H -0.020      
7 H -0.020      
8 H -0.020      


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 -18.564 0.000 0.000
y 0.000 -17.441 0.000
z 0.000 0.000 -14.460
Traceless
 xyz
x -2.614 0.000 0.000
y 0.000 -0.929 0.000
z 0.000 0.000 3.543
Polar
3z2-r27.085
x2-y2-1.124
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.403 0.000 0.000
y 0.000 4.107 0.000
z 0.000 0.000 3.352


<r2> (average value of r2) Å2
<r2> 33.072
(<r2>)1/2 5.751