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

using model chemistry: PBE1PBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at PBE1PBE/STO-3G
 hartrees
Energy at 0K-211.628555
Energy at 298.15K 
HF Energy-211.628555
Nuclear repulsion energy55.626832
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 PBE1PBE/STO-3G
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 890 785 0.00 24.07 0.10 0.18
2 Ag 437 386 0.00 0.89 0.74 0.85
3 B1u 800 706 96.13 0.00 0.00 0.00
4 B2u 859 757 190.97 0.00 0.00 0.00
5 B3g 761 671 0.00 0.00 0.75 0.86
6 B3u 257 227 64.39 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 2002.2 cm-1
Scaled (by 0.8821) Zero Point Vibrational Energy (zpe) 1766.1 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 PBE1PBE/STO-3G
ABC
0.97703 0.31902 0.24049

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/STO-3G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 1.109 0.000
Li2 0.000 -1.109 0.000
F3 0.000 0.000 1.179
F4 0.000 0.000 -1.179

Atom - Atom Distances (Å)
  Li1 Li2 F3 F4
Li12.21781.61871.6187
Li22.21781.61871.6187
F31.61871.61872.3586
F41.61871.61872.3586

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 86.475 Li1 F4 Li2 86.475
F3 Li1 F4 93.525 F3 Li2 F4 93.525
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.102      
2 Li 0.102      
3 F -0.102      
4 F -0.102      


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 -15.945 0.000 0.000
y 0.000 -8.448 0.000
z 0.000 0.000 -19.234
Traceless
 xyz
x -2.104 0.000 0.000
y 0.000 9.142 0.000
z 0.000 0.000 -7.038
Polar
3z2-r2-14.076
x2-y2-7.497
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.341 0.000 0.000
y 0.000 5.055 0.000
z 0.000 0.000 1.374


<r2> (average value of r2) Å2
<r2> 41.493
(<r2>)1/2 6.442