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

using model chemistry: ROHF/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-311.526695
Energy at 298.15K 
HF Energy-311.526695
Nuclear repulsion energy70.429150
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/6-311+G(3df,2p)
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 1457 1323 0.14      
2 A1 439 399 65.18      
3 B2 315 286 21.75      

Unscaled Zero Point Vibrational Energy (zpe) 1105.1 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 1004.0 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 ROHF/6-311+G(3df,2p)
ABC
1.28212 0.30993 0.24959

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.195
O2 0.000 0.641 -0.822
O3 0.000 -0.641 -0.822

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.11592.1159
O22.11591.2822
O32.11591.2822

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 72.363 Na1 O3 O2 72.363
O2 Na1 O3 35.274
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.931      
2 O -0.466      
3 O -0.466      


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 8.342 8.342
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.095 0.000 0.000
y 0.000 -18.005 -0.001
z 0.000 -0.001 -11.137
Traceless
 xyz
x -0.524 0.000 0.000
y 0.000 -4.888 -0.001
z 0.000 -0.001 5.412
Polar
3z2-r210.825
x2-y22.909
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> 42.291
(<r2>)1/2 6.503