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All results from a given calculation for B2H6 (Diborane)

using model chemistry: PBE1PBE/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/cc-pVTZ
 hartrees
Energy at 0K-53.210325
Energy at 298.15K-53.216174
HF Energy-53.210325
Nuclear repulsion energy32.182151
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/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 2516 0.00 277.48 0.09 0.16
2 Ag 2191 2106 0.00 80.87 0.05 0.10
3 Ag 1189 1142 0.00 7.63 0.72 0.84
4 Ag 821 789 0.00 18.34 0.16 0.28
5 Au 850 816 0.00 0.00 0.00 0.00
6 B1g 2695 2590 0.00 113.50 0.75 0.86
7 B1g 930 894 0.00 0.68 0.75 0.86
8 B1u 2038 1959 4.00 0.00 0.00 0.00
9 B1u 979 941 20.36 0.00 0.75 0.86
10 B2g 1893 1819 0.00 3.60 0.75 0.86
11 B2g 898 863 0.00 0.45 0.75 0.86
12 B2u 2710 2604 156.02 0.00 0.00 0.00
13 B2u 913 877 0.01 0.00 0.00 0.00
14 B2u 330 317 17.34 0.00 0.00 0.00
15 B3g 993 955 0.00 14.63 0.75 0.86
16 B3u 2604 2503 139.70 0.00 0.00 0.00
17 B3u 1721 1654 404.31 0.00 0.00 0.00
18 B3u 1181 1135 59.61 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13776.7 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 13239.4 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/cc-pVTZ
ABC
2.67536 0.61822 0.56800

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/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 1.039 0.000
H6 1.453 -1.039 0.000
H7 -1.453 1.039 0.000
H8 -1.453 -1.039 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.74761.31471.31471.19001.19002.54842.5484
B21.74761.31471.31472.54842.54841.19001.1900
H31.31471.31471.96472.03882.03882.03882.0388
H41.31471.31471.96472.03882.03882.03882.0388
H51.19002.54842.03882.03882.07902.90603.5731
H61.19002.54842.03882.03882.07903.57312.9060
H72.54841.19002.03882.03882.90603.57312.0790
H82.54841.19002.03882.03883.57312.90602.0790

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.308 B1 H4 B2 83.308
H3 B1 H4 96.692 H3 B1 H5 108.874
H3 B1 H6 108.874 H3 B2 H4 96.692
H3 B2 H7 108.874 H3 B2 H8 108.874
H4 B1 H5 108.874 H4 B1 H6 108.874
H4 B2 H7 108.874 H4 B2 H8 108.874
H5 B1 H6 121.750 H7 B2 H8 121.750
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.229      
2 B -0.229      
3 H 0.135      
4 H 0.135      
5 H 0.047      
6 H 0.047      
7 H 0.047      
8 H 0.047      


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 -18.844 0.000 0.000
y 0.000 -17.854 0.000
z 0.000 0.000 -14.785
Traceless
 xyz
x -2.524 0.000 0.000
y 0.000 -1.040 0.000
z 0.000 0.000 3.564
Polar
3z2-r27.128
x2-y2-0.990
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.885 0.000 0.000
y 0.000 4.686 0.000
z 0.000 0.000 3.898


<r2> (average value of r2) Å2
<r2> 33.051
(<r2>)1/2 5.749