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All results from a given calculation for O2 (Oxygen diatomic)

using model chemistry: mPW1PW91/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 3Σg
Energy calculated at mPW1PW91/CEP-121G*
 hartrees
Energy at 0K-31.839671
Energy at 298.15K-31.839668
HF Energy-31.839671
Nuclear repulsion energy15.696750
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 mPW1PW91/CEP-121G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 1710 1624 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 854.9 cm-1
Scaled (by 0.9499) Zero Point Vibrational Energy (zpe) 812.0 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 mPW1PW91/CEP-121G*
B
1.43106

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/CEP-121G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.607
O2 0.000 0.000 -0.607

Atom - Atom Distances (Å)
  O1 O2
O11.2137
O21.2137

picture of Oxygen diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.000      
2 O 0.000      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.882 0.000 0.000
y 0.000 -9.882 0.000
z 0.000 0.000 -10.337
Traceless
 xyz
x 0.227 0.000 0.000
y 0.000 0.227 0.000
z 0.000 0.000 -0.455
Polar
3z2-r2-0.909
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.704 0.000 0.000
y 0.000 0.704 0.000
z 0.000 0.000 2.079


<r2> (average value of r2) Å2
<r2> 10.686
(<r2>)1/2 3.269