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 LiO2 (Lithium dioxide)

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-157.847178
Energy at 298.15K 
HF Energy-157.847178
Nuclear repulsion energy39.689935
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 mPW1PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 1239 1175 6.18 8.45 0.53 0.69
2 A1 775 735 104.19 11.18 0.17 0.29
3 B2 551 522 22.16 0.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1281.9 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 1215.7 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 mPW1PW91/6-31G*
ABC
1.18262 1.08519 0.56591

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.384
O2 0.000 0.668 -0.259
O3 0.000 -0.668 -0.259

Atom - Atom Distances (Å)
  Li1 O2 O3
Li11.77351.7735
O21.77351.3351
O31.77351.3351

picture of Lithium dioxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Li1 O2 O3 67.890 Li1 O3 O2 67.890
O2 Li1 O3 44.220
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.622      
2 O -0.311      
3 O -0.311      


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 5.768 5.768
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.530 0.000 0.000
y 0.000 -15.251 0.000
z 0.000 0.000 -4.987
Traceless
 xyz
x -2.411 0.000 0.000
y 0.000 -6.493 0.000
z 0.000 0.000 8.904
Polar
3z2-r217.807
x2-y22.721
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.367 0.000 0.000
y 0.000 2.989 0.000
z 0.000 0.000 2.130


<r2> (average value of r2) Å2
<r2> 20.772
(<r2>)1/2 4.558