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

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G
 hartrees
Energy at 0K-32.048632
Energy at 298.15K 
HF Energy-32.048632
Nuclear repulsion energy16.262119
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/CEP-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 1091 1057 0.75 12.34 0.64 0.78
2 A1 393 381 49.33 8.46 0.29 0.45
3 B2 339 329 0.28 11.85 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 911.8 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 883.0 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/CEP-31G
ABC
1.04660 0.27996 0.22088

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.257
O2 0.000 0.710 -0.864
O3 0.000 -0.710 -0.864

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.23722.2372
O22.23721.4192
O32.23721.4192

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 71.508 Na1 O3 O2 71.508
O2 Na1 O3 36.984
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.789      
2 O -0.395      
3 O -0.395      


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 9.044 9.044
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.768 0.000 0.000
y 0.000 -16.427 0.000
z 0.000 0.000 -8.827
Traceless
 xyz
x -0.141 0.000 0.000
y 0.000 -5.629 0.000
z 0.000 0.000 5.770
Polar
3z2-r211.540
x2-y23.659
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.280 0.000 0.000
y 0.000 3.905 0.000
z 0.000 0.000 2.442


<r2> (average value of r2) Å2
<r2> 24.505
(<r2>)1/2 4.950