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

using model chemistry: HF/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 3Σg
2 1 yes D*H 1Δg

State 1 (3Σg)

Jump to S2C1
Energy calculated at HF/6-31G*
 hartrees
Energy at 0K-149.617908
Energy at 298.15K-149.617908
HF Energy-149.617908
Nuclear repulsion energy29.002941
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/6-31G*
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 1998 1796 0.00 43.01 0.31 0.47

Unscaled Zero Point Vibrational Energy (zpe) 999.2 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 897.8 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/6-31G*
B
1.54585

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.584
O2 0.000 0.000 -0.584

Atom - Atom Distances (Å)
  O1 O2
O11.1677
O21.1677

picture of Oxygen diatomic state 1 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* 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 0.000 0.000 0.000 0.000
AIM 0.000 0.000 0.000 0.000
ESP 0.000 0.000 0.000 0.000


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.840 0.000 0.000
y 0.000 -9.840 0.000
z 0.000 0.000 -10.385
Traceless
 xyz
x 0.273 0.000 0.000
y 0.000 0.273 0.000
z 0.000 0.000 -0.545
Polar
3z2-r2-1.090
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 0.614 0.000 0.000
y 0.000 0.614 0.000
z 0.000 0.000 2.108


<r2> (average value of r2) Å2
<r2> 11.714
(<r2>)1/2 3.423

State 2 (1Δg)

Jump to S1C1
Energy calculated at HF/6-31G*
 hartrees
Energy at 0K-149.532997
Energy at 298.15K-149.532997
HF Energy-149.532997
Nuclear repulsion energy29.054692
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/6-31G*
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 1998 1795 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 998.7 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 897.4 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/6-31G*
B
1.55137

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.583
O2 0.000 0.000 -0.583

Atom - Atom Distances (Å)
  O1 O2
O11.1656
O21.1656

picture of Oxygen diatomic state 2 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.000      
2 O 0.000      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.061 0.000 0.000
y 0.000 -10.706 0.000
z 0.000 0.000 -10.436
Traceless
 xyz
x 1.510 0.000 0.000
y 0.000 -0.958 0.000
z 0.000 0.000 -0.552
Polar
3z2-r2-1.105
x2-y21.645
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.638 0.000 0.000
y 0.000 0.549 0.000
z 0.000 0.000 1.760


<r2> (average value of r2) Å2
<r2> 11.723
(<r2>)1/2 3.424