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

using model chemistry: B2PLYP/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 B2PLYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-312.495405
Energy at 298.15K 
HF Energy-312.336808
Nuclear repulsion energy68.206315
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 B2PLYP/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 1119 1119 5.37 11.91 0.64 0.78
2 A1 429 429 66.36 14.41 0.12 0.21
3 B2 345 345 5.70 3.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 946.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 946.5 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 B2PLYP/6-311+G(3df,2p)
ABC
1.14042 0.30255 0.23911

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.209
O2 0.000 0.680 -0.831
O3 0.000 -0.680 -0.831

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.15122.1512
O22.15121.3595
O32.15121.3595

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 71.579 Na1 O3 O2 71.579
O2 Na1 O3 36.842
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.859      
2 O -0.429      
3 O -0.429      


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 8.093 8.093
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.596 0.000 0.000
y 0.000 -18.500 0.000
z 0.000 0.000 -11.645
Traceless
 xyz
x -0.524 0.000 0.000
y 0.000 -4.880 0.000
z 0.000 0.000 5.403
Polar
3z2-r210.806
x2-y22.904
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.169 0.000 0.000
y 0.000 3.784 0.000
z 0.000 0.000 2.719


<r2> (average value of r2) Å2
<r2> 44.067
(<r2>)1/2 6.638