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All results from a given calculation for Li2F2 (Lithium fluoride dimer)

using model chemistry: B2PLYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at B2PLYP/3-21G
 hartrees
Energy at 0K-213.565476
Energy at 298.15K 
HF Energy-213.478242
Nuclear repulsion energy52.651544
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 B2PLYP/3-21G
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 754 754 0.00 15.44 0.07 0.14
2 Ag 401 401 0.00 0.50 0.51 0.68
3 B1u 695 695 182.05 0.00 0.53 0.69
4 B2u 640 640 261.06 0.00 0.44 0.62
5 B3g 619 619 0.00 0.29 0.75 0.86
6 B3u 300 300 182.73 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1704.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1704.8 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 B2PLYP/3-21G
ABC
0.95122 0.27440 0.21297

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 1.124 0.000
Li2 0.000 -1.124 0.000
F3 0.000 0.000 1.272
F4 0.000 0.000 -1.272

Atom - Atom Distances (Å)
  Li1 Li2 F3 F4
Li12.24771.69701.6970
Li22.24771.69701.6970
F31.69701.69702.5431
F41.69701.69702.5431

picture of Lithium fluoride dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Li1 F3 Li2 82.942 Li1 F4 Li2 82.942
F3 Li1 F4 97.058 F3 Li2 F4 97.058
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.435      
2 Li 0.435      
3 F -0.435      
4 F -0.435      


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 -14.842 0.000 0.000
y 0.000 -4.474 0.000
z 0.000 0.000 -25.148
Traceless
 xyz
x -0.031 0.000 0.000
y 0.000 15.521 0.000
z 0.000 0.000 -15.490
Polar
3z2-r2-30.979
x2-y2-10.368
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.624 0.000 0.000
y 0.000 3.099 0.000
z 0.000 0.000 1.498


<r2> (average value of r2) Å2
<r2> 45.938
(<r2>)1/2 6.778