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

using model chemistry: HF/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 HF/3-21G
 hartrees
Energy at 0K-212.847478
Energy at 298.15K 
HF Energy-212.847478
Nuclear repulsion energy53.073219
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 HF/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 780 706 0.00 3.26 0.12 0.21
2 Ag 418 378 0.00 0.24 0.50 0.67
3 B1u 737 667 229.47 0.00 0.00 0.00
4 B2u 670 607 290.03 0.00 0.00 0.00
5 B3g 657 595 0.00 0.17 0.75 0.86
6 B3u 324 293 234.40 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1792.7 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 1623.5 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 HF/3-21G
ABC
0.96287 0.27931 0.21651

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 1.117 0.000
Li2 0.000 -1.117 0.000
F3 0.000 0.000 1.260
F4 0.000 0.000 -1.260

Atom - Atom Distances (Å)
  Li1 Li2 F3 F4
Li12.23401.68411.6841
Li22.23401.68411.6841
F31.68411.68412.5206
F41.68411.68412.5206

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 83.101 Li1 F4 Li2 83.101
F3 Li1 F4 96.899 F3 Li2 F4 96.899
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.569      
2 Li 0.569      
3 F -0.569      
4 F -0.569      


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 -13.620 0.000 0.000
y 0.000 -2.920 0.000
z 0.000 0.000 -25.144
Traceless
 xyz
x 0.412 0.000 0.000
y 0.000 16.461 0.000
z 0.000 0.000 -16.874
Polar
3z2-r2-33.748
x2-y2-10.699
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.927 0.000 0.000
y 0.000 1.818 0.000
z 0.000 0.000 0.911


<r2> (average value of r2) Å2
<r2> 44.755
(<r2>)1/2 6.690