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

using model chemistry: CISD/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A1
Energy calculated at CISD/6-311+G(3df,2p)
 hartrees
Energy at 0K-311.970967
Energy at 298.15K 
HF Energy-311.536632
Nuclear repulsion energy68.137837
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 CISD/6-311+G(3df,2p)
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 1354 1248 65.78      
2 A1 443 409 108.26      
3 B2 358 330 25.88      

Unscaled Zero Point Vibrational Energy (zpe) 1077.2 cm-1
Scaled (by 0.9218) Zero Point Vibrational Energy (zpe) 993.0 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 CISD/6-311+G(3df,2p)
ABC
1.19490 0.29104 0.23404

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.233
O2 0.000 0.664 -0.848
O3 0.000 -0.664 -0.848

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.18432.1843
O22.18431.3282
O32.18431.3282

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 72.300 Na1 O3 O2 72.300
O2 Na1 O3 35.400
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability