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

using model chemistry: M06-2X/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at M06-2X/TZVP
 hartrees
Energy at 0K-214.949717
Energy at 298.15K 
HF Energy-214.949717
Nuclear repulsion energy51.226964
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 M06-2X/TZVP
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 685 648 0.00 0.71 0.33 0.50
2 Ag 364 345 0.00 0.57 0.43 0.60
3 B1u 680 643 275.65 0.00 0.00 0.00
4 B2u 596 564 304.91 0.00 0.00 0.00
5 B3g 589 557 0.00 0.00 0.75 0.86
6 B3u 300 284 245.72 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1606.8 cm-1
Scaled (by 0.9462) Zero Point Vibrational Energy (zpe) 1520.3 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 M06-2X/TZVP
ABC
0.91118 0.25831 0.20126

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/TZVP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 1.148 0.000
Li2 0.000 -1.148 0.000
F3 0.000 0.000 1.311
F4 0.000 0.000 -1.311

Atom - Atom Distances (Å)
  Li1 Li2 F3 F4
Li12.29651.74241.7424
Li22.29651.74241.7424
F31.74241.74242.6211
F41.74241.74242.6211

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 82.447 Li1 F4 Li2 82.447
F3 Li1 F4 97.553 F3 Li2 F4 97.553
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.791      
2 Li 0.791      
3 F -0.791      
4 F -0.791      


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 -14.340 0.000 0.000
y 0.000 -2.299 0.000
z 0.000 0.000 -27.548
Traceless
 xyz
x 0.584 0.000 0.000
y 0.000 18.644 0.000
z 0.000 0.000 -19.228
Polar
3z2-r2-38.457
x2-y2-12.040
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.245 0.000 0.000
y 0.000 1.918 0.000
z 0.000 0.000 1.429


<r2> (average value of r2) Å2
<r2> 48.026
(<r2>)1/2 6.930