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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A1
Energy calculated at G4
 hartrees
Energy at 0K-312.456615
Energy at 298.15K-312.452208
HF Energy-312.664482
Nuclear repulsion energy69.178269
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 B3LYP/6-31G(2df,p)
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 1177 1136 0.78 6.70 0.26 0.41
2 A1 447 432 43.67 10.61 0.09 0.16
3 B2 377 364 2.41 10.80 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1000.4 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 965.4 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 B3LYP/6-31G(2df,p)
ABC
1.16050 0.31388 0.24706

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.187
O2 0.000 0.674 -0.816
O3 0.000 -0.674 -0.816

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.11402.1140
O22.11401.3477
O32.11401.3477

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 71.414 Na1 O3 O2 71.414
O2 Na1 O3 37.172
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.593      
2 O -0.296      
3 O -0.296      


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 7.476 7.476
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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 42.681
(<r2>)1/2 6.533