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

using model chemistry: HF/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-48.381560
Energy at 298.15K 
HF Energy-48.381560
Nuclear repulsion energy19.027774
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/CEP-121G*
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 678 612 0.00 0.58 0.12 0.21
2 Ag 397 358 0.00 0.15 0.22 0.36
3 B1u 689 622 293.95 0.00 0.00 0.00
4 B2u 575 520 307.84 0.00 0.00 0.00
5 B3g 567 512 0.00 0.26 0.75 0.86
6 B3u 317 286 237.05 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1611.2 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 1455.5 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/CEP-121G*
ABC
1.02469 0.26435 0.21014

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 1.083 0.000
Li2 0.000 -1.083 0.000
F3 0.000 0.000 1.295
F4 0.000 0.000 -1.295

Atom - Atom Distances (Å)
  Li1 Li2 F3 F4
Li12.16561.68841.6884
Li22.16561.68841.6884
F31.68841.68842.5910
F41.68841.68842.5910

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 79.779 Li1 F4 Li2 79.779
F3 Li1 F4 100.221 F3 Li2 F4 100.221
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.848      
2 Li 0.848      
3 F -0.848      
4 F -0.848      


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 -12.926 0.000 0.000
y 0.000 -1.957 0.000
z 0.000 0.000 -25.615
Traceless
 xyz
x 0.860 0.000 0.000
y 0.000 17.313 0.000
z 0.000 0.000 -18.173
Polar
3z2-r2-36.346
x2-y2-10.968
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.441 0.000 0.000
y 0.000 1.684 0.000
z 0.000 0.000 1.331


<r2> (average value of r2) Å2
<r2> 34.272
(<r2>)1/2 5.854