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: HSEh1PBE/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 HSEh1PBE/STO-3G
 hartrees
Energy at 0K-211.646801
Energy at 298.15K 
HF Energy-211.646801
Nuclear repulsion energy55.623366
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 HSEh1PBE/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 889 785 0.00 23.89 0.10 0.18
2 Ag 437 386 0.00 0.89 0.75 0.85
3 B1u 801 708 95.53 0.00 0.00 0.00
4 B2u 857 757 190.15 0.00 0.00 0.00
5 B3g 762 673 0.00 0.00 0.75 0.86
6 B3u 256 226 63.97 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 2001.3 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 1767.4 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 HSEh1PBE/STO-3G
ABC
0.97697 0.31896 0.24046

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/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
Li12.21781.61881.6188
Li22.21781.61881.6188
F31.61881.61882.3588
F41.61881.61882.3588

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 86.472 Li1 F4 Li2 86.472
F3 Li1 F4 93.528 F3 Li2 F4 93.528
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.100      
2 Li 0.100      
3 F -0.100      
4 F -0.100      


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 -15.963 0.000 0.000
y 0.000 -8.469 0.000
z 0.000 0.000 -19.223
Traceless
 xyz
x -2.118 0.000 0.000
y 0.000 9.124 0.000
z 0.000 0.000 -7.007
Polar
3z2-r2-14.014
x2-y2-7.495
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.361 0.000 0.000
y 0.000 5.092 0.000
z 0.000 0.000 1.380


<r2> (average value of r2) Å2
<r2> 41.504
(<r2>)1/2 6.442