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All results from a given calculation for B2H6 (Diborane)

using model chemistry: mPW1PW91/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-53.284281
Energy at 298.15K-53.290136
HF Energy-53.284281
Nuclear repulsion energy32.207522
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/Def2TZVPP
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 2625 2625 0.00 271.12 0.09 0.16
2 Ag 2194 2194 0.00 76.13 0.05 0.10
3 Ag 1196 1196 0.00 7.48 0.68 0.81
4 Ag 819 819 0.00 18.52 0.17 0.28
5 Au 851 851 0.00 0.00 0.00 0.00
6 B1g 2702 2702 0.00 106.99 0.75 0.86
7 B1g 933 933 0.00 0.83 0.75 0.86
8 B1u 2036 2036 5.02 0.00 0.00 0.00
9 B1u 985 985 20.17 0.00 0.00 0.00
10 B2g 1894 1894 0.00 3.64 0.75 0.86
11 B2g 900 900 0.00 0.07 0.75 0.86
12 B2u 2717 2717 161.44 0.00 0.00 0.00
13 B2u 924 924 0.05 0.00 0.00 0.00
14 B2u 337 337 17.05 0.00 0.00 0.00
15 B3g 1003 1003 0.00 7.23 0.75 0.86
16 B3u 2611 2611 142.20 0.00 0.00 0.00
17 B3u 1725 1725 417.04 0.00 0.00 0.00
18 B3u 1187 1187 61.90 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13821.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13821.6 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/Def2TZVPP
ABC
2.68579 0.61817 0.56804

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/Def2TZVPP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.874 0.000 0.000
B2 -0.874 0.000 0.000
H3 0.000 0.000 0.980
H4 0.000 0.000 -0.980
H5 1.453 1.038 0.000
H6 1.453 -1.038 0.000
H7 -1.453 1.038 0.000
H8 -1.453 -1.038 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.74841.31311.31311.18811.18812.54782.5478
B21.74841.31311.31312.54782.54781.18811.1881
H31.31311.31311.95962.03652.03652.03652.0365
H41.31311.31311.95962.03652.03652.03652.0365
H51.18812.54782.03652.03652.07552.90543.5706
H61.18812.54782.03652.03652.07553.57062.9054
H72.54781.18812.03652.03652.90543.57062.0755
H82.54781.18812.03652.03653.57062.90542.0755

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.481 B1 H4 B2 83.481
H3 B1 H4 96.519 H3 B1 H5 108.915
H3 B1 H6 108.915 H3 B2 H4 96.519
H3 B2 H7 108.915 H3 B2 H8 108.915
H4 B1 H5 108.915 H4 B1 H6 108.915
H4 B2 H7 108.915 H4 B2 H8 108.915
H5 B1 H6 121.726 H7 B2 H8 121.726
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.151      
2 B -0.151      
3 H 0.074      
4 H 0.074      
5 H 0.038      
6 H 0.038      
7 H 0.038      
8 H 0.038      


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 -18.753 0.000 0.000
y 0.000 -17.789 0.000
z 0.000 0.000 -14.739
Traceless
 xyz
x -2.489 0.000 0.000
y 0.000 -1.043 0.000
z 0.000 0.000 3.532
Polar
3z2-r27.064
x2-y2-0.964
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.801 0.000 0.000
y 0.000 4.657 0.000
z 0.000 0.000 3.869


<r2> (average value of r2) Å2
<r2> 32.988
(<r2>)1/2 5.744