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All results from a given calculation for B2H6 (Diborane)

using model chemistry: LSDA/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at LSDA/TZVP
 hartrees
Energy at 0K-52.951025
Energy at 298.15K-52.956714
HF Energy-52.951025
Nuclear repulsion energy32.249499
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 LSDA/TZVP
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 2562 2533 0.00      
2 Ag 2172 2147 0.00      
3 Ag 1134 1121 0.00      
4 Ag 825 815 0.00      
5 Au 836 826 0.00      
6 B1g 2644 2613 0.00      
7 B1g 899 889 0.00      
8 B1u 2050 2026 0.56      
9 B1u 934 923 10.59      
10 B2g 1892 1870 0.00      
11 B2g 884 874 0.00      
12 B2u 2658 2627 120.76      
13 B2u 822 812 0.80      
14 B2u 268 265 21.23      
15 B3g 897 887 0.00      
16 B3u 2551 2521 118.88      
17 B3u 1693 1674 277.93      
18 B3u 1133 1120 34.83      

Unscaled Zero Point Vibrational Energy (zpe) 13426.4 cm-1
Scaled (by 0.9884) Zero Point Vibrational Energy (zpe) 13270.6 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 LSDA/TZVP
ABC
2.65022 0.62800 0.57598

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.863 0.000 0.000
B2 -0.863 0.000 0.000
H3 0.000 0.000 0.988
H4 0.000 0.000 -0.988
H5 1.450 1.044 0.000
H6 1.450 -1.044 0.000
H7 -1.450 1.044 0.000
H8 -1.450 -1.044 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.72611.31201.31201.19751.19752.53752.5375
B21.72611.31201.31202.53752.53751.19751.1975
H31.31201.31201.97632.04162.04162.04162.0416
H41.31201.31201.97632.04162.04162.04162.0416
H51.19752.53752.04162.04162.08772.89963.5730
H61.19752.53752.04162.04162.08773.57302.8996
H72.53751.19752.04162.04162.89963.57302.0877
H82.53751.19752.04162.04163.57302.89962.0877

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 82.268 B1 H4 B2 82.268
H3 B1 H4 97.732 H3 B1 H5 108.804
H3 B1 H6 108.804 H3 B2 H4 97.732
H3 B2 H7 108.804 H3 B2 H8 108.804
H4 B1 H5 108.804 H4 B1 H6 108.804
H4 B2 H7 108.804 H4 B2 H8 108.804
H5 B1 H6 121.320 H7 B2 H8 121.320
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.249      
2 B -0.249      
3 H 0.134      
4 H 0.134      
5 H 0.058      
6 H 0.058      
7 H 0.058      
8 H 0.058      


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 -19.109 0.000 0.000
y 0.000 -17.937 0.000
z 0.000 0.000 -14.942
Traceless
 xyz
x -2.670 0.000 0.000
y 0.000 -0.911 0.000
z 0.000 0.000 3.581
Polar
3z2-r27.162
x2-y2-1.173
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.037 0.000 0.000
y 0.000 4.710 0.000
z 0.000 0.000 3.586


<r2> (average value of r2) Å2
<r2> 32.992
(<r2>)1/2 5.744