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: ROMP2/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at ROMP2/cc-pVTZ
 hartrees
Energy at 0K-157.643430
Energy at 298.15K 
HF Energy-157.138840
Nuclear repulsion energy38.670284
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 ROMP2/cc-pVTZ
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 980 980        
2 A1 740 740        
3 B2 889 889        

Unscaled Zero Point Vibrational Energy (zpe) 1304.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1304.0 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 ROMP2/cc-pVTZ
ABC
1.09395 1.09373 0.54692

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.378
O2 0.000 0.694 -0.258
O3 0.000 -0.694 -0.258

Atom - Atom Distances (Å)
  Li1 O2 O3
Li11.77761.7776
O21.77761.3883
O31.77761.3883

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 67.016 Li1 O3 O2 67.016
O2 Li1 O3 45.969
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.500      
2 O -0.250      
3 O -0.250      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 21.171
(<r2>)1/2 4.601