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

using model chemistry: TPSSh/3-21G

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/3-21G
 hartrees
Energy at 0K-310.826308
Energy at 298.15K 
HF Energy-310.826308
Nuclear repulsion energy67.700169
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/3-21G
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 1125 1090 0.44 39.26 0.65 0.79
2 A1 431 418 23.28 53.04 0.12 0.22
3 B2 373 362 0.03 41.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 964.7 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 934.6 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 TPSSh/3-21G
ABC
1.01426 0.32157 0.24416

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.173
O2 0.000 0.721 -0.807
O3 0.000 -0.721 -0.807

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.10682.1068
O22.10681.4416
O32.10681.4416

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 69.993 Na1 O3 O2 69.993
O2 Na1 O3 40.014
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.595      
2 O -0.298      
3 O -0.298      


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 7.399 7.399
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 1.452 0.000 0.000
y 0.000 3.824 0.000
z 0.000 0.000 3.036


<r2> (average value of r2) Å2
<r2> 43.547
(<r2>)1/2 6.599