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

using model chemistry: ROHF/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 ROHF/aug-cc-pVDZ
 hartrees
Energy at 0K-311.503968
Energy at 298.15K 
HF Energy-311.503968
Nuclear repulsion energy70.162928
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 ROHF/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 1437 1437 0.15      
2 A1 443 443 66.26      
3 B2 321 321 22.87      

Unscaled Zero Point Vibrational Energy (zpe) 1100.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1100.1 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 ROHF/aug-cc-pVDZ
ABC
1.27194 0.30768 0.24775

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.199
O2 0.000 0.644 -0.825
O3 0.000 -0.644 -0.825

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.12372.1237
O22.12371.2873
O32.12371.2873

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 72.357 Na1 O3 O2 72.357
O2 Na1 O3 35.286
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.874      
2 O -0.437      
3 O -0.437      


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 8.493 8.493
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.210 0.000 0.000
y 0.000 -18.096 -0.001
z 0.000 -0.001 -11.013
Traceless
 xyz
x -0.655 0.000 0.000
y 0.000 -4.985 -0.001
z 0.000 -0.001 5.640
Polar
3z2-r211.281
x2-y22.886
xy0.000
xz0.000
yz-0.001


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


<r2> (average value of r2) Å2
<r2> 42.554
(<r2>)1/2 6.523