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All results from a given calculation for B2H6 (Diborane)

using model chemistry: mPW1PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-53.264680
Energy at 298.15K-53.270511
HF Energy-53.264680
Nuclear repulsion energy31.941506
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 mPW1PW91/aug-cc-pVDZ
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 2617 2508 0.00 309.96 0.07 0.12
2 Ag 2174 2084 0.00 89.00 0.04 0.08
3 Ag 1181 1131 0.00 6.34 0.65 0.79
4 Ag 811 777 0.00 19.24 0.15 0.26
5 Au 836 801 0.00 0.00 0.00 0.00
6 B1g 2698 2585 0.00 121.59 0.75 0.86
7 B1g 922 884 0.00 0.40 0.75 0.86
8 B1u 2024 1940 5.74 0.00 0.00 0.00
9 B1u 974 934 20.27 0.00 0.00 0.00
10 B2g 1875 1797 0.00 3.44 0.75 0.86
11 B2g 884 847 0.00 0.02 0.75 0.86
12 B2u 2716 2602 167.52 0.00 0.00 0.00
13 B2u 907 869 0.09 0.00 0.00 0.00
14 B2u 330 316 16.85 0.00 0.00 0.00
15 B3g 989 947 0.00 5.82 0.75 0.86
16 B3u 2601 2493 149.26 0.00 0.00 0.00
17 B3u 1708 1636 432.59 0.00 0.00 0.00
18 B3u 1170 1121 64.90 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13707.6 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 13136.0 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 mPW1PW91/aug-cc-pVDZ
ABC
2.64119 0.60762 0.55816

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.883 0.000 0.000
B2 -0.883 0.000 0.000
H3 0.000 0.000 0.987
H4 0.000 0.000 -0.987
H5 1.463 1.047 0.000
H6 1.463 -1.047 0.000
H7 -1.463 1.047 0.000
H8 -1.463 -1.047 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76521.32381.32381.19731.19732.56882.5688
B21.76521.32381.32382.56882.56881.19731.1973
H31.32381.32381.97322.05202.05202.05202.0520
H41.32381.32381.97322.05202.05202.05202.0520
H51.19732.56882.05202.05202.09432.92623.5984
H61.19732.56882.05202.05202.09433.59842.9262
H72.56881.19732.05202.05202.92623.59842.0943
H82.56881.19732.05202.05203.59842.92622.0943

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.631 B1 H4 B2 83.631
H3 B1 H4 96.369 H3 B1 H5 108.860
H3 B1 H6 108.860 H3 B2 H4 96.369
H3 B2 H7 108.860 H3 B2 H8 108.860
H4 B1 H5 108.860 H4 B1 H6 108.860
H4 B2 H7 108.860 H4 B2 H8 108.860
H5 B1 H6 121.998 H7 B2 H8 121.998
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -1.975      
2 B -1.975      
3 H 0.698      
4 H 0.698      
5 H 0.638      
6 H 0.638      
7 H 0.638      
8 H 0.638      


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 -18.815 0.000 0.000
y 0.000 -17.905 0.000
z 0.000 0.000 -14.891
Traceless
 xyz
x -2.417 0.000 0.000
y 0.000 -1.052 0.000
z 0.000 0.000 3.469
Polar
3z2-r26.937
x2-y2-0.910
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.012 0.000 0.000
y 0.000 4.925 0.000
z 0.000 0.000 4.239


<r2> (average value of r2) Å2
<r2> 33.431
(<r2>)1/2 5.782