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

using model chemistry: PBEPBEultrafine/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-214.732069
Energy at 298.15K 
HF Energy-214.732069
Nuclear repulsion energy50.782206
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/aug-cc-pVDZ
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 651 647 0.00 6.65 0.02 0.03
2 Ag 353 351 0.00 0.32 0.17 0.29
3 B1u 653 649 281.98 0.00 0.00 0.00
4 B2u 554 551 265.72 0.00 0.00 0.00
5 B3g 551 548 0.00 0.62 0.75 0.86
6 B3u 278 276 189.62 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1519.7 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 1510.4 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 PBEPBEultrafine/aug-cc-pVDZ
ABC
0.96090 0.24585 0.19576

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/aug-cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 1.118 0.000
Li2 0.000 -1.118 0.000
F3 0.000 0.000 1.343
F4 0.000 0.000 -1.343

Atom - Atom Distances (Å)
  Li1 Li2 F3 F4
Li12.23631.74781.7478
Li22.23631.74781.7478
F31.74781.74782.6867
F41.74781.74782.6867

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 79.545 Li1 F4 Li2 79.545
F3 Li1 F4 100.455 F3 Li2 F4 100.455
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.528      
2 Li 0.528      
3 F -0.528      
4 F -0.528      


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 -15.165 0.000 0.000
y 0.000 -3.495 0.000
z 0.000 0.000 -27.138
Traceless
 xyz
x 0.152 0.000 0.000
y 0.000 17.657 0.000
z 0.000 0.000 -17.808
Polar
3z2-r2-35.617
x2-y2-11.670
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.740 0.000 0.000
y 0.000 2.992 0.000
z 0.000 0.000 2.691


<r2> (average value of r2) Å2
<r2> 49.519
(<r2>)1/2 7.037