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

using model chemistry: PBEPBE/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 PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-214.782928
Energy at 298.15K 
HF Energy-214.782928
Nuclear repulsion energy50.910751
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 PBEPBE/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 655 651 0.00 6.99 0.05 0.09
2 Ag 353 350 0.00 0.24 0.22 0.36
3 B1u 663 658 254.05 0.00 0.00 0.00
4 B2u 552 549 262.27 0.00 0.00 0.00
5 B3g 546 542 0.00 1.05 0.75 0.86
6 B3u 279 277 180.47 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1524.0 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 1513.5 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 PBEPBE/cc-pVTZ
ABC
0.97096 0.24652 0.19660

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 1.112 0.000
Li2 0.000 -1.112 0.000
F3 0.000 0.000 1.342
F4 0.000 0.000 -1.342

Atom - Atom Distances (Å)
  Li1 Li2 F3 F4
Li12.22471.74271.7427
Li22.22471.74271.7427
F31.74271.74272.6831
F41.74271.74272.6831

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 79.328 Li1 F4 Li2 79.328
F3 Li1 F4 100.672 F3 Li2 F4 100.672
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.395      
2 Li 0.395      
3 F -0.395      
4 F -0.395      


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 -14.920 0.000 0.000
y 0.000 -3.700 0.000
z 0.000 0.000 -26.579
Traceless
 xyz
x 0.220 0.000 0.000
y 0.000 17.049 0.000
z 0.000 0.000 -17.269
Polar
3z2-r2-34.538
x2-y2-11.220
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.649 0.000 0.000
y 0.000 3.028 0.000
z 0.000 0.000 2.409


<r2> (average value of r2) Å2
<r2> 49.229
(<r2>)1/2 7.016