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

using model chemistry: PBEPBE/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 PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-214.793012
Energy at 298.15K 
HF Energy-214.793012
Nuclear repulsion energy51.036535
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 PBEPBE/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 652 644 0.00 5.50 0.07 0.13
2 Ag 358 354 0.00 0.46 0.25 0.40
3 B1u 652 644 263.25 0.00 0.07 0.00
4 B2u 559 552 273.31 0.00 0.00 0.00
5 B3g 540 534 0.00 0.97 0.75 0.86
6 B3u 284 280 189.31 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1522.4 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 1504.0 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 PBEPBE/Def2TZVPP
ABC
0.96221 0.24927 0.19798

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 1.117 0.000
Li2 0.000 -1.117 0.000
F3 0.000 0.000 1.334
F4 0.000 0.000 -1.334

Atom - Atom Distances (Å)
  Li1 Li2 F3 F4
Li12.23481.74021.7402
Li22.23481.74021.7402
F31.74021.74022.6682
F41.74021.74022.6682

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 79.896 Li1 F4 Li2 79.896
F3 Li1 F4 100.104 F3 Li2 F4 100.104
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.685      
2 Li 0.685      
3 F -0.685      
4 F -0.685      


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 -14.762 0.000 0.000
y 0.000 -3.592 0.000
z 0.000 0.000 -26.869
Traceless
 xyz
x 0.468 0.000 0.000
y 0.000 17.224 0.000
z 0.000 0.000 -17.692
Polar
3z2-r2-35.383
x2-y2-11.170
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.364 0.000 0.000
y 0.000 2.880 0.000
z 0.000 0.000 2.087


<r2> (average value of r2) Å2
<r2> 48.944
(<r2>)1/2 6.996