return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B1B95/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at B1B95/Def2TZVPP
 hartrees
Energy at 0K-214.975310
Energy at 298.15K 
HF Energy-214.975310
Nuclear repulsion energy51.561072
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 B1B95/Def2TZVPP
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 678 678 0.00 2.69 0.07 0.14
2 Ag 366 366 0.00 0.33 0.27 0.43
3 B1u 696 696 284.93 0.00 0.00 0.00
4 B2u 590 590 287.75 0.00 0.00 0.00
5 B3g 582 582 0.00 0.53 0.75 0.86
6 B3u 289 289 207.59 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1600.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1600.2 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 B1B95/Def2TZVPP
ABC
0.96683 0.25620 0.20253

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/Def2TZVPP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 1.115 0.000
Li2 0.000 -1.115 0.000
F3 0.000 0.000 1.316
F4 0.000 0.000 -1.316

Atom - Atom Distances (Å)
  Li1 Li2 F3 F4
Li12.22941.72461.7246
Li22.22941.72461.7246
F31.72461.72462.6319
F41.72461.72462.6319

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 80.535 Li1 F4 Li2 80.535
F3 Li1 F4 99.465 F3 Li2 F4 99.465
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.731      
2 Li 0.731      
3 F -0.731      
4 F -0.731      


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 -14.306 0.000 0.000
y 0.000 -3.028 0.000
z 0.000 0.000 -26.656
Traceless
 xyz
x 0.536 0.000 0.000
y 0.000 17.453 0.000
z 0.000 0.000 -17.989
Polar
3z2-r2-35.978
x2-y2-11.277
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.987 0.000 0.000
y 0.000 2.359 0.000
z 0.000 0.000 1.816


<r2> (average value of r2) Å2
<r2> 47.784
(<r2>)1/2 6.913