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

using model chemistry: PBE1PBE/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 PBE1PBE/6-311+G(3df,2p)
 hartrees
Energy at 0K-312.443634
Energy at 298.15K 
HF Energy-312.443634
Nuclear repulsion energy69.411146
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 PBE1PBE/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 1237 1237 1.15 7.69 0.51 0.67
2 A1 429 429 54.18 9.43 0.06 0.12
3 B2 358 358 3.59 6.64 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1011.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1011.9 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 PBE1PBE/6-311+G(3df,2p)
ABC
1.19831 0.30994 0.24625

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/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 0.663 -0.822
O3 0.000 -0.663 -0.822

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.12272.1227
O22.12271.3263
O32.12271.3263

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 71.796 Na1 O3 O2 71.796
O2 Na1 O3 36.408
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.861      
2 O -0.430      
3 O -0.430      


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 7.989 7.989
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.469 0.000 0.000
y 0.000 -18.437 0.000
z 0.000 0.000 -11.500
Traceless
 xyz
x -0.501 0.000 0.000
y 0.000 -4.953 0.000
z 0.000 0.000 5.453
Polar
3z2-r210.907
x2-y22.968
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.187 0.000 0.000
y 0.000 4.085 0.000
z 0.000 0.000 3.013


<r2> (average value of r2) Å2
<r2> 42.995
(<r2>)1/2 6.557