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: B3LYP/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at B3LYP/cc-pVDZ
 hartrees
Energy at 0K-214.969588
Energy at 298.15K 
HF Energy-214.969588
Nuclear repulsion energy51.208246
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 B3LYP/cc-pVDZ
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 710 688 0.00 6.26 0.09 0.16
2 Ag 363 352 0.00 0.21 0.42 0.59
3 B1u 697 676 188.18 0.00 0.00 0.00
4 B2u 582 564 280.27 0.00 0.00 0.00
5 B3g 577 560 0.00 1.59 0.75 0.86
6 B3u 299 290 199.26 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1613.8 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 1565.4 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 B3LYP/cc-pVDZ
ABC
0.94806 0.25337 0.19994

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 1.126 0.000
Li2 0.000 -1.126 0.000
F3 0.000 0.000 1.323
F4 0.000 0.000 -1.323

Atom - Atom Distances (Å)
  Li1 Li2 F3 F4
Li12.25141.73731.7373
Li22.25141.73731.7373
F31.73731.73732.6465
F41.73731.73732.6465

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 80.776 Li1 F4 Li2 80.776
F3 Li1 F4 99.224 F3 Li2 F4 99.224
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.454      
2 Li 0.454      
3 F -0.454      
4 F -0.454      


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 -14.926 0.000 0.000
y 0.000 -3.382 0.000
z 0.000 0.000 -26.606
Traceless
 xyz
x 0.069 0.000 0.000
y 0.000 17.384 0.000
z 0.000 0.000 -17.452
Polar
3z2-r2-34.905
x2-y2-11.543
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.086 0.000 0.000
y 0.000 2.717 0.000
z 0.000 0.000 1.521


<r2> (average value of r2) Å2
<r2> 48.472
(<r2>)1/2 6.962