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

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A1
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-312.586409
Energy at 298.15K 
HF Energy-312.586409
Nuclear repulsion energy69.239546
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 mPW1PW91/6-31G*
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 1238 1174 1.14 7.22 0.48 0.65
2 A1 439 416 42.93 12.49 0.13 0.23
3 B2 379 360 1.04 12.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1028.1 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 974.9 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 mPW1PW91/6-31G*
ABC
1.17929 0.31098 0.24609

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.193
O2 0.000 0.668 -0.820
O3 0.000 -0.668 -0.820

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.12122.1212
O22.12121.3369
O32.12121.3369

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 71.631 Na1 O3 O2 71.631
O2 Na1 O3 36.739
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.676      
2 O -0.338      
3 O -0.338      


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 7.813 7.813
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.140 0.000 0.000
y 0.000 -18.056 0.000
z 0.000 0.000 -10.934
Traceless
 xyz
x -0.645 0.000 0.000
y 0.000 -5.019 0.000
z 0.000 0.000 5.664
Polar
3z2-r211.328
x2-y22.916
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.468 0.000 0.000
y 0.000 3.388 0.000
z 0.000 0.000 2.437


<r2> (average value of r2) Å2
<r2> 42.753
(<r2>)1/2 6.539