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

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-156.507440
Energy at 298.15K 
HF Energy-156.240757
Nuclear repulsion energy37.026480
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 MP2/3-21G*
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 976 928 8.38 5836.04 0.31 0.48
2 A1 799 760 71.91 632.31 0.29 0.45
3 B2 828 787 762.19 199.41 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1300.9 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 1237.6 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 MP2/3-21G*
ABC
1.12066 0.95162 0.51462

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 1.362
O2 0.000 0.744 -0.255
O3 0.000 -0.744 -0.255

Atom - Atom Distances (Å)
  Li1 O2 O3
Li11.77991.7799
O21.77991.4883
O31.77991.4883

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 65.286 Li1 O3 O2 65.286
O2 Li1 O3 49.428
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability