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

using model chemistry: MP2/daug-cc-pVDZ

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/daug-cc-pVDZ
 hartrees
Energy at 0K-311.909067
Energy at 298.15K 
HF Energy-311.508243
Nuclear repulsion energy66.863148
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/daug-cc-pVDZ
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 1043 1043 8.88 13469.51 0.33 0.50
2 A1 422 422 75.14 0.00 0.33 0.50
3 B2 1339 1339 93305.72 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1401.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1401.6 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/daug-cc-pVDZ
ABC
1.10065 0.28982 0.22941

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.236
O2 0.000 0.692 -0.850
O3 0.000 -0.692 -0.850

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.19712.1971
O22.19711.3839
O32.19711.3839

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 71.643 Na1 O3 O2 71.643
O2 Na1 O3 36.714
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability