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

using model chemistry: PBEPBEultrafine/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at PBEPBEultrafine/6-311G*
 hartrees
Energy at 0K-214.763601
Energy at 298.15K 
HF Energy-214.763601
Nuclear repulsion energy51.175752
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 PBEPBEultrafine/6-311G*
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 680 673 0.00 9.11 0.07 0.13
2 Ag 358 354 0.00 0.43 0.46 0.63
3 B1u 685 678 225.77 0.00 0.00 0.00
4 B2u 578 572 265.36 0.00 0.00 0.00
5 B3g 570 564 0.00 0.93 0.75 0.86
6 B3u 282 279 174.83 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1576.0 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 1559.6 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 PBEPBEultrafine/6-311G*
ABC
0.96643 0.25075 0.19909

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-311G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 1.115 0.000
Li2 0.000 -1.115 0.000
F3 0.000 0.000 1.330
F4 0.000 0.000 -1.330

Atom - Atom Distances (Å)
  Li1 Li2 F3 F4
Li12.22991.73561.7356
Li22.22991.73561.7356
F31.73561.73562.6603
F41.73561.73562.6603

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 79.939 Li1 F4 Li2 79.939
F3 Li1 F4 100.061 F3 Li2 F4 100.061
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.525      
2 Li 0.525      
3 F -0.525      
4 F -0.525      


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 -14.685 0.000 0.000
y 0.000 -3.787 0.000
z 0.000 0.000 -25.797
Traceless
 xyz
x 0.107 0.000 0.000
y 0.000 16.454 0.000
z 0.000 0.000 -16.561
Polar
3z2-r2-33.122
x2-y2-10.898
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.200 0.000 0.000
y 0.000 2.956 0.000
z 0.000 0.000 1.960


<r2> (average value of r2) Å2
<r2> 48.524
(<r2>)1/2 6.966