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

using model chemistry: TPSSh/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A1
Energy calculated at TPSSh/6-31+G**
 hartrees
Energy at 0K-312.653841
Energy at 298.15K 
HF Energy-312.653841
Nuclear repulsion energy68.298941
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 TPSSh/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 1139 1096 1.56 12.02 0.48 0.65
2 A1 412 396 49.41 12.41 0.10 0.18
3 B2 343 331 1.53 20.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 946.7 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 911.2 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 TPSSh/6-31+G**
ABC
1.13749 0.30457 0.24025

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.205
O2 0.000 0.681 -0.829
O3 0.000 -0.681 -0.829

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.14502.1450
O22.14501.3613
O32.14501.3613

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 71.499 Na1 O3 O2 71.499
O2 Na1 O3 37.002
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.769      
2 O -0.385      
3 O -0.385      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 8.259 8.259
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.815 0.000 0.000
y 0.000 4.070 0.000
z 0.000 0.000 3.090


<r2> (average value of r2) Å2
<r2> 43.950
(<r2>)1/2 6.629