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

using model chemistry: B3PW91/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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-312.569390
Energy at 298.15K 
HF Energy-312.569390
Nuclear repulsion energy68.843117
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 B3PW91/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 1194 1152 1.26      
2 A1 427 412 38.28      
3 B2 365 352 1.48      

Unscaled Zero Point Vibrational Energy (zpe) 992.8 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 958.1 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 B3PW91/cc-pVDZ
ABC
1.17401 0.30582 0.24262

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.203
O2 0.000 0.670 -0.827
O3 0.000 -0.670 -0.827

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.13772.1377
O22.13771.3399
O32.13771.3399

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 71.735 Na1 O3 O2 71.735
O2 Na1 O3 36.529
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.605      
2 O -0.302      
3 O -0.302      


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 8.014 8.014
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.336 0.000 0.000
y 0.000 -18.520 0.000
z 0.000 0.000 -10.796
Traceless
 xyz
x -0.679 0.000 0.000
y 0.000 -5.454 0.000
z 0.000 0.000 6.133
Polar
3z2-r212.265
x2-y23.184
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.643 0.000 0.000
y 0.000 3.650 0.000
z 0.000 0.000 2.250


<r2> (average value of r2) Å2
<r2> 43.340
(<r2>)1/2 6.583