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

using model chemistry: B3LYPultrafine/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at B3LYPultrafine/6-31G(2df,p)
 hartrees
Energy at 0K-214.970238
Energy at 298.15K 
HF Energy-214.970238
Nuclear repulsion energy51.513751
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 B3LYPultrafine/6-31G(2df,p)
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 704 679 0.00 5.05 0.05 0.09
2 Ag 370 357 0.00 0.09 0.09 0.17
3 B1u 697 673 233.12 0.00 0.00 0.00
4 B2u 580 559 277.99 0.00 0.00 0.00
5 B3g 565 545 0.00 1.27 0.75 0.86
6 B3u 297 287 184.27 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1605.6 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 1549.4 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 B3LYPultrafine/6-31G(2df,p)
ABC
0.97018 0.25512 0.20200

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G(2df,p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 1.113 0.000
Li2 0.000 -1.113 0.000
F3 0.000 0.000 1.319
F4 0.000 0.000 -1.319

Atom - Atom Distances (Å)
  Li1 Li2 F3 F4
Li12.22561.72551.7255
Li22.22561.72551.7255
F31.72551.72552.6374
F41.72551.72552.6374

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 80.318 Li1 F4 Li2 80.318
F3 Li1 F4 99.682 F3 Li2 F4 99.682
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.347      
2 Li 0.347      
3 F -0.347      
4 F -0.347      


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 -14.888 0.000 0.000
y 0.000 -3.506 0.000
z 0.000 0.000 -26.088
Traceless
 xyz
x -0.091 0.000 0.000
y 0.000 16.982 0.000
z 0.000 0.000 -16.891
Polar
3z2-r2-33.782
x2-y2-11.382
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.472 0.000 0.000
y 0.000 2.822 0.000
z 0.000 0.000 2.133


<r2> (average value of r2) Å2
<r2> 47.993
(<r2>)1/2 6.928