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All results from a given calculation for NaO2 (Sodium superoxide)

using model chemistry: MP3=FULL/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A1
Energy calculated at MP3=FULL/TZVP
 hartrees
Energy at 0K-312.032393
Energy at 298.15K 
HF Energy-311.537350
Nuclear repulsion energy68.570811
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 MP3=FULL/TZVP
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 1230 1149 1.03      
2 A1 415 387 55.69      
3 B2 438 409 180.03      

Unscaled Zero Point Vibrational Energy (zpe) 1041.5 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 972.4 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 MP3=FULL/TZVP
ABC
1.18020 0.30040 0.23945

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.214
O2 0.000 0.668 -0.834
O3 0.000 -0.668 -0.834

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.15452.1545
O22.15451.3364
O32.15451.3364

picture of Sodium superoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Na1 O2 O3 71.932 Na1 O3 O2 71.932
O2 Na1 O3 36.137
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability