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

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

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-pVTZ
 hartrees
Energy at 0K-312.077055
Energy at 298.15K 
HF Energy-311.549664
Nuclear repulsion energy68.795692
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-pVTZ
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 1086 1033 0.18 3809267.00 0.33 0.50
2 A1 410 390 53.90 292.41 0.29 0.45
3 B2 605 575 1828.34 450.31 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1050.4 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 999.3 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-pVTZ
ABC
1.14305 0.31125 0.24464

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.192
O2 0.000 0.679 -0.820
O3 0.000 -0.679 -0.820

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.12372.1237
O22.12371.3580
O32.12371.3580

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 71.354 Na1 O3 O2 71.354
O2 Na1 O3 37.293
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability