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

using model chemistry: ROHF/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 ROHF/6-31G**
 hartrees
Energy at 0K-311.464731
Energy at 298.15K 
HF Energy-311.464731
Nuclear repulsion energy70.217581
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/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 1455 1243 0.29      
2 A1 452 386 57.73      
3 B2 327 279 28.91      

Unscaled Zero Point Vibrational Energy (zpe) 1116.6 cm-1
Scaled (by 0.8546) Zero Point Vibrational Energy (zpe) 954.2 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 ROHF/6-31G**
ABC
1.25952 0.31084 0.24931

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.193
O2 0.000 0.647 -0.820
O3 0.000 -0.647 -0.820

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.11492.1149
O22.11491.2937
O32.11491.2937

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 72.191 Na1 O3 O2 72.191
O2 Na1 O3 35.618
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.770      
2 O -0.385      
3 O -0.385      


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 8.305 8.305
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.839 0.000 0.000
y 0.000 -17.815 -0.001
z 0.000 -0.001 -10.800
Traceless
 xyz
x -0.531 0.000 0.000
y 0.000 -4.996 -0.001
z 0.000 -0.001 5.527
Polar
3z2-r211.055
x2-y22.977
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> 42.168
(<r2>)1/2 6.494