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

using model chemistry: B2PLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at B2PLYP/6-31G*
 hartrees
Energy at 0K-214.756030
Energy at 298.15K 
HF Energy-214.630757
Nuclear repulsion energy51.676162
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 B2PLYP/6-31G*
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 718 682 0.00 5.70 0.06 0.11
2 Ag 377 358 0.00 0.21 0.41 0.58
3 B1u 718 682 222.12 0.00 0.00 0.00
4 B2u 597 567 294.46 0.00 0.00 0.00
5 B3g 594 563 0.00 0.85 0.75 0.86
6 B3u 296 281 183.59 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1650.3 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 1566.4 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 B2PLYP/6-31G*
ABC
0.98505 0.25572 0.20301

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 1.104 0.000
Li2 0.000 -1.104 0.000
F3 0.000 0.000 1.317
F4 0.000 0.000 -1.317

Atom - Atom Distances (Å)
  Li1 Li2 F3 F4
Li12.20871.71891.7189
Li22.20871.71891.7189
F31.71891.71892.6344
F41.71891.71892.6344

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 79.954 Li1 F4 Li2 79.954
F3 Li1 F4 100.046 F3 Li2 F4 100.046
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.533      
2 Li 0.533      
3 F -0.533      
4 F -0.533      


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 -14.537 0.000 0.000
y 0.000 -3.799 0.000
z 0.000 0.000 -25.650
Traceless
 xyz
x 0.188 0.000 0.000
y 0.000 16.294 0.000
z 0.000 0.000 -16.482
Polar
3z2-r2-32.964
x2-y2-10.737
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.927 0.000 0.000
y 0.000 2.668 0.000
z 0.000 0.000 1.644


<r2> (average value of r2) Å2
<r2> 47.705
(<r2>)1/2 6.907