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

using model chemistry: HF/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A1
Energy calculated at HF/6-31+G**
 hartrees
Energy at 0K-311.481785
Energy at 298.15K 
HF Energy-311.481785
Nuclear repulsion energy69.751732
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 HF/6-31+G**
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 1414 1278 0.08 887.94 0.31 0.47
2 A1 431 390 63.03 1.28 0.09 0.16
3 B2 346 313 0.32 13.54 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1095.2 cm-1
Scaled (by 0.9042) Zero Point Vibrational Energy (zpe) 990.2 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 HF/6-31+G**
ABC
1.24749 0.30586 0.24564

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.203
O2 0.000 0.650 -0.827
O3 0.000 -0.650 -0.827

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.13142.1314
O22.13141.2999
O32.13141.2999

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 72.245 Na1 O3 O2 72.245
O2 Na1 O3 35.509
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.814      
2 O -0.407      
3 O -0.407      


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 8.618 8.618
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.251 0.000 0.000
y 0.000 -18.180 0.000
z 0.000 0.000 -11.288
Traceless
 xyz
x -0.517 0.000 0.000
y 0.000 -4.910 0.000
z 0.000 0.000 5.427
Polar
3z2-r210.854
x2-y22.929
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.554 0.000 0.000
y 0.000 4.736 0.000
z 0.000 0.000 1.882


<r2> (average value of r2) Å2
<r2> 42.927
(<r2>)1/2 6.552