return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for LiO2 (Lithium dioxide)

using model chemistry: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-157.343707
Energy at 298.15K 
HF Energy-157.074217
Nuclear repulsion energy36.265219
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 MP2/SDD
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 847 818 11.51 3109.88 0.33 0.50
2 A1 677 654 93.16 0.00 0.33 0.50
3 B2 1150 1110 12503.14 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1337.3 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 1290.9 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 MP2/SDD
ABC
1.00186 0.94321 0.48582

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.440
O2 0.000 0.747 -0.270
O3 0.000 -0.747 -0.270

Atom - Atom Distances (Å)
  Li1 O2 O3
Li11.86631.8663
O21.86631.4949
O31.86631.4949

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 66.390 Li1 O3 O2 66.390
O2 Li1 O3 47.220
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability