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

using model chemistry: HF/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A1
Energy calculated at HF/aug-cc-pVDZ
 hartrees
Energy at 0K-311.515506
Energy at 298.15K 
HF Energy-311.515506
Nuclear repulsion energy69.967518
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 HF/aug-cc-pVDZ
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 1407 1281 0.04 611.41 0.30 0.47
2 A1 441 402 65.86 1.40 0.08 0.15
3 B2 358 326 0.01 9.71 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1103.2 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 1004.6 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 HF/aug-cc-pVDZ
ABC
1.25788 0.30726 0.24694

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.200
O2 0.000 0.647 -0.825
O3 0.000 -0.647 -0.825

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.12612.1261
O22.12611.2945
O32.12611.2945

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 72.276 Na1 O3 O2 72.276
O2 Na1 O3 35.447
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.869      
2 O -0.435      
3 O -0.435      


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 8.478 8.478
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.334 0.000 0.000
y 0.000 -18.069 0.000
z 0.000 0.000 -11.036
Traceless
 xyz
x -0.781 0.000 0.000
y 0.000 -4.884 0.000
z 0.000 0.000 5.666
Polar
3z2-r211.331
x2-y22.735
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.843 0.000 0.000
y 0.000 4.669 0.000
z 0.000 0.000 2.068


<r2> (average value of r2) Å2
<r2> 42.691
(<r2>)1/2 6.534