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

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A1
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-310.783496
Energy at 298.15K 
HF Energy-310.783496
Nuclear repulsion energy68.718090
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 mPW1PW91/3-21G*
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 1176 1117 1.81 15.65 0.03 0.06
2 A1 468 444 35.82 7.00 0.13 0.23
3 B2 390 371 0.64 7.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1017.1 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 965.9 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 mPW1PW91/3-21G*
ABC
1.04625 0.33103 0.25146

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.156
O2 0.000 0.710 -0.795
O3 0.000 -0.710 -0.795

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.07622.0762
O22.07621.4194
O32.07621.4194

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 70.012 Na1 O3 O2 70.012
O2 Na1 O3 39.976
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.548      
2 O -0.274      
3 O -0.274      


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 7.341 7.341
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.475 0.000 0.000
y 0.000 -18.472 0.000
z 0.000 0.000 -11.428
Traceless
 xyz
x -0.525 0.000 0.000
y 0.000 -5.021 0.000
z 0.000 0.000 5.546
Polar
3z2-r211.091
x2-y22.997
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.424 0.000 0.000
y 0.000 3.228 0.000
z 0.000 0.000 2.031


<r2> (average value of r2) Å2
<r2> 42.322
(<r2>)1/2 6.506