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

using model chemistry: MP3=FULL/6-311G**

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/6-311G**
 hartrees
Energy at 0K-312.070243
Energy at 298.15K 
HF Energy-311.518468
Nuclear repulsion energy69.042118
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/6-311G**
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 1253 1253 0.61      
2 A1 445 445 51.81      
3 B2 443 443 97.91      

Unscaled Zero Point Vibrational Energy (zpe) 1070.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1070.5 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/6-311G**
ABC
1.19341 0.30514 0.24300

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.204
O2 0.000 0.665 -0.828
O3 0.000 -0.665 -0.828

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.13812.1381
O22.13811.3290
O32.13811.3290

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 71.893 Na1 O3 O2 71.893
O2 Na1 O3 36.213
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability