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

using model chemistry: B1B95/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A1
Energy calculated at B1B95/cc-pVTZ
 hartrees
Energy at 0K-312.671787
Energy at 298.15K 
HF Energy-312.671787
Nuclear repulsion energy69.094602
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 B1B95/cc-pVTZ
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 1219 1167 1.53 8.44 0.43 0.61
2 A1 414 397 45.31 7.08 0.08 0.16
3 B2 374 358 2.43 6.36 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1003.4 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 960.3 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 B1B95/cc-pVTZ
ABC
1.18794 0.30701 0.24396

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.201
O2 0.000 0.666 -0.825
O3 0.000 -0.666 -0.825

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.13272.1327
O22.13271.3321
O32.13271.3321

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 71.802 Na1 O3 O2 71.802
O2 Na1 O3 36.395
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.576      
2 O -0.288      
3 O -0.288      


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 8.030 8.030
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.337 0.000 0.000
y 0.000 -18.358 0.000
z 0.000 0.000 -10.948
Traceless
 xyz
x -0.684 0.000 0.000
y 0.000 -5.215 0.000
z 0.000 0.000 5.899
Polar
3z2-r211.798
x2-y23.021
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.908 0.000 0.000
y 0.000 3.800 0.000
z 0.000 0.000 2.626


<r2> (average value of r2) Å2
<r2> 43.150
(<r2>)1/2 6.569