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

using model chemistry: PBE1PBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at PBE1PBE/cc-pVTZ
 hartrees
Energy at 0K-214.788053
Energy at 298.15K 
HF Energy-214.788053
Nuclear repulsion energy51.435596
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 PBE1PBE/cc-pVTZ
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 675 649 0.00 3.72 0.05 0.09
2 Ag 363 349 0.00 0.19 0.23 0.37
3 B1u 684 657 271.00 0.00 0.00 0.00
4 B2u 573 551 274.46 0.00 0.00 0.00
5 B3g 566 544 0.00 0.68 0.75 0.86
6 B3u 288 276 195.31 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1574.3 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 1512.9 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 PBE1PBE/cc-pVTZ
ABC
0.98203 0.25264 0.20095

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 1.106 0.000
Li2 0.000 -1.106 0.000
F3 0.000 0.000 1.325
F4 0.000 0.000 -1.325

Atom - Atom Distances (Å)
  Li1 Li2 F3 F4
Li12.21211.72611.7261
Li22.21211.72611.7261
F31.72611.72612.6503
F41.72611.72612.6503

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 79.700 Li1 F4 Li2 79.700
F3 Li1 F4 100.300 F3 Li2 F4 100.300
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.450      
2 Li 0.450      
3 F -0.450      
4 F -0.450      


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 -14.463 0.000 0.000
y 0.000 -3.288 0.000
z 0.000 0.000 -26.324
Traceless
 xyz
x 0.343 0.000 0.000
y 0.000 17.106 0.000
z 0.000 0.000 -17.448
Polar
3z2-r2-34.897
x2-y2-11.175
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.254 0.000 0.000
y 0.000 2.550 0.000
z 0.000 0.000 2.126


<r2> (average value of r2) Å2
<r2> 48.126
(<r2>)1/2 6.937