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All results from a given calculation for LiO2 (Lithium dioxide)

using model chemistry: ROMP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at ROMP2/3-21G*
 hartrees
Energy at 0K-156.517817
Energy at 298.15K 
HF Energy-156.224824
Nuclear repulsion energy36.572001
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 ROMP2/3-21G*
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 886 886        
2 A1 775 775        
3 B2 686 686        

Unscaled Zero Point Vibrational Energy (zpe) 1173.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1173.6 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 ROMP2/3-21G*
ABC
1.13363 0.91189 0.50537

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.354
O2 0.000 0.760 -0.254
O3 0.000 -0.760 -0.254

Atom - Atom Distances (Å)
  Li1 O2 O3
Li11.77831.7783
O21.77831.5204
O31.77831.5204

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 64.692 Li1 O3 O2 64.692
O2 Li1 O3 50.616
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Li 0.611      
2 O -0.305      
3 O -0.305      


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> 22.614
(<r2>)1/2 4.755