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

using model chemistry: PBEPBEultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A1
Energy calculated at PBEPBEultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-312.458851
Energy at 298.15K 
HF Energy-312.458851
Nuclear repulsion energy68.002707
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 PBEPBEultrafine/aug-cc-pVTZ
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 1093 1080 3.56 373.26 0.16 0.27
2 A1 407 402 44.01 73.15 0.10 0.18
3 B2 341 337 2.01 93.90 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 920.3 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 910.0 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 PBEPBEultrafine/aug-cc-pVTZ
ABC
1.13302 0.30086 0.23774

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.213
O2 0.000 0.682 -0.834
O3 0.000 -0.682 -0.834

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.15732.1573
O22.15731.3640
O32.15731.3640

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 71.571 Na1 O3 O2 71.571
O2 Na1 O3 36.858
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.834      
2 O -0.417      
3 O -0.417      


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 7.950 7.950
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.808 0.000 0.000
y 0.000 -19.045 0.000
z 0.000 0.000 -11.623
Traceless
 xyz
x -0.474 0.000 0.000
y 0.000 -5.329 0.000
z 0.000 0.000 5.803
Polar
3z2-r211.606
x2-y23.237
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.651 0.000 0.000
y 0.000 5.504 0.000
z 0.000 0.000 4.252


<r2> (average value of r2) Å2
<r2> 44.422
(<r2>)1/2 6.665