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

using model chemistry: MP2=FULL/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A1
Energy calculated at MP2=FULL/aug-cc-pVQZ
 hartrees
Energy at 0K-312.176615
Energy at 298.15K 
HF Energy-311.552797
Nuclear repulsion energy72.702653
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=FULL/aug-cc-pVQZ
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 1100 1052 0.11 1578057.00 0.33 0.50
2 A1 531 508 46.73 872.74 0.31 0.47
3 B2 600 573 1110.23 191.80 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1115.5 cm-1
Scaled (by 0.9564) Zero Point Vibrational Energy (zpe) 1066.9 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=FULL/aug-cc-pVQZ
ABC
1.15059 0.37536 0.28303

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVQZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.086
O2 0.000 0.677 -0.747
O3 0.000 -0.677 -0.747

Atom - Atom Distances (Å)
  Na1 O2 O3
Na11.95331.9533
O21.95331.3535
O31.95331.3535

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 69.729 Na1 O3 O2 69.729
O2 Na1 O3 40.543
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability