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All results from a given calculation for B2H6 (Diborane)

using model chemistry: PBE1PBE/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at PBE1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-53.210657
Energy at 298.15K-53.216507
HF Energy-53.210657
Nuclear repulsion energy32.183140
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 PBE1PBE/aug-cc-pVTZ
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 2618 2517 0.00 309.83 0.06 0.12
2 Ag 2190 2106 0.00 88.07 0.04 0.08
3 Ag 1189 1143 0.00 6.25 0.64 0.78
4 Ag 821 789 0.00 18.59 0.14 0.24
5 Au 849 817 0.00 0.00 0.21 0.34
6 B1g 2694 2590 0.00 116.87 0.75 0.86
7 B1g 930 894 0.00 0.40 0.75 0.86
8 B1u 2038 1959 3.57 0.00 0.00 0.00
9 B1u 979 942 20.90 0.00 0.75 0.86
10 B2g 1893 1820 0.00 3.49 0.75 0.86
11 B2g 898 863 0.00 0.03 0.75 0.86
12 B2u 2710 2605 158.50 0.00 0.00 0.00
13 B2u 914 879 0.02 0.00 0.00 0.00
14 B2u 331 318 17.38 0.00 0.00 0.00
15 B3g 993 955 0.00 5.59 0.75 0.86
16 B3u 2604 2503 140.81 0.00 0.00 0.00
17 B3u 1721 1655 403.56 0.00 0.00 0.00
18 B3u 1180 1135 60.74 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13775.6 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 13245.3 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 PBE1PBE/aug-cc-pVTZ
ABC
2.67533 0.61829 0.56804

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVTZ

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 0.982
H4 0.000 0.000 -0.982
H5 1.453 1.040 0.000
H6 1.453 -1.040 0.000
H7 -1.453 1.040 0.000
H8 -1.453 -1.040 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.74751.31461.31461.19001.19002.54842.5484
B21.74751.31461.31462.54842.54841.19001.1900
H31.31461.31461.96452.03872.03872.03872.0387
H41.31461.31461.96452.03872.03872.03872.0387
H51.19002.54842.03872.03872.07912.90593.5730
H61.19002.54842.03872.03872.07913.57302.9059
H72.54841.19002.03872.03872.90593.57302.0791
H82.54841.19002.03872.03873.57302.90592.0791

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.311 B1 H4 B2 83.311
H3 B1 H4 96.689 H3 B1 H5 108.873
H3 B1 H6 108.873 H3 B2 H4 96.689
H3 B2 H7 108.873 H3 B2 H8 108.873
H4 B1 H5 108.873 H4 B1 H6 108.873
H4 B2 H7 108.873 H4 B2 H8 108.873
H5 B1 H6 121.753 H7 B2 H8 121.753
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.046      
2 B -0.046      
3 H 0.136      
4 H 0.136      
5 H -0.045      
6 H -0.045      
7 H -0.045      
8 H -0.045      


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 -18.824 0.000 0.000
y 0.000 -17.850 0.000
z 0.000 0.000 -14.798
Traceless
 xyz
x -2.500 0.000 0.000
y 0.000 -1.039 0.000
z 0.000 0.000 3.539
Polar
3z2-r27.079
x2-y2-0.974
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.980 0.000 0.000
y 0.000 4.878 0.000
z 0.000 0.000 4.212


<r2> (average value of r2) Å2
<r2> 33.047
(<r2>)1/2 5.749