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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-312.547104
Energy at 298.15K 
HF Energy-312.547104
Nuclear repulsion energy67.632271
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 1074 1016 0.05 8.74 0.35 0.52
2 A1 430 408 39.16 9.79 0.15 0.27
3 B2 345 327 0.27 11.22 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 924.6 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 875.2 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 mPW1PW91/6-31G
ABC
1.07305 0.30740 0.23895

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 1.200
O2 0.000 0.701 -0.825
O3 0.000 -0.701 -0.825

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.14262.1426
O22.14261.4016
O32.14261.4016

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 70.909 Na1 O3 O2 70.909
O2 Na1 O3 38.182
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 0.750      
2 O -0.375      
3 O -0.375      


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 8.321 8.321
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.265 0.000 0.000
y 0.000 -18.588 0.000
z 0.000 0.000 -11.716
Traceless
 xyz
x -0.114 0.000 0.000
y 0.000 -5.097 0.000
z 0.000 0.000 5.211
Polar
3z2-r210.421
x2-y23.322
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.110 0.000 0.000
y 0.000 3.316 0.000
z 0.000 0.000 2.194


<r2> (average value of r2) Å2
<r2> 44.068
(<r2>)1/2 6.638