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

using model chemistry: mPW1PW91/daug-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 mPW1PW91/daug-cc-pVDZ
 hartrees
Energy at 0K-214.913631
Energy at 298.15K 
HF Energy-214.913631
Nuclear repulsion energy51.323376
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 mPW1PW91/daug-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 669 669 0.00 4.75 0.01 0.02
2 Ag 363 363 0.00 0.25 0.13 0.23
3 B1u 675 675 292.29 0.00 0.00 0.00
4 B2u 573 573 275.64 0.00 0.00 0.00
5 B3g 569 569 0.00 0.36 0.75 0.86
6 B3u 274 274 198.84 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1561.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1561.5 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 mPW1PW91/daug-cc-pVDZ
ABC
0.97288 0.25210 0.20022

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/daug-cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 1.111 0.000
Li2 0.000 -1.111 0.000
F3 0.000 0.000 1.327
F4 0.000 0.000 -1.327

Atom - Atom Distances (Å)
  Li1 Li2 F3 F4
Li12.22251.73051.7305
Li22.22251.73051.7305
F31.73051.73052.6532
F41.73051.73052.6532

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 79.903 Li1 F4 Li2 79.903
F3 Li1 F4 100.097 F3 Li2 F4 100.097
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.474      
2 Li 0.474      
3 F -0.474      
4 F -0.474      


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 -14.628 0.000 0.000
y 0.000 -3.073 0.000
z 0.000 0.000 -26.732
Traceless
 xyz
x 0.275 0.000 0.000
y 0.000 17.607 0.000
z 0.000 0.000 -17.882
Polar
3z2-r2-35.763
x2-y2-11.555
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.490 0.000 0.000
y 0.000 2.570 0.000
z 0.000 0.000 2.410


<r2> (average value of r2) Å2
<r2> 48.338
(<r2>)1/2 6.953