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

using model chemistry: LSDA/3-21G*

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 LSDA/3-21G*
 hartrees
Energy at 0K-148.742757
Energy at 298.15K-148.742744
HF Energy-148.742757
Nuclear repulsion energy26.013131
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 LSDA/3-21G*
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 1369 1344 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 684.4 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 672.1 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 LSDA/3-21G*
B
1.24356

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.651
O2 0.000 0.000 -0.651

Atom - Atom Distances (Å)
  O1 O2
O11.3019
O21.3019

picture of Oxygen diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* 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 -9.645 0.000 0.000
y 0.000 -9.645 0.000
z 0.000 0.000 -10.288
Traceless
 xyz
x 0.321 0.000 0.000
y 0.000 0.321 0.000
z 0.000 0.000 -0.643
Polar
3z2-r2-1.286
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 0.303 0.000 0.000
y 0.000 0.303 0.000
z 0.000 0.000 1.697


<r2> (average value of r2) Å2
<r2> 12.938
(<r2>)1/2 3.597

State 2 (1Δg)

Jump to S1C1
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-148.681503
Energy at 298.15K-148.681489
HF Energy-148.681503
Nuclear repulsion energy25.925459
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 LSDA/3-21G*
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 1352 1328 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 676.2 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 664.0 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 LSDA/3-21G*
B
1.23519

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.653
O2 0.000 0.000 -0.653

Atom - Atom Distances (Å)
  O1 O2
O11.3063
O21.3063

picture of Oxygen diatomic state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* 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 -10.550 0.000 0.000
y 0.000 -8.790 0.000
z 0.000 0.000 -10.294
Traceless
 xyz
x -1.008 0.000 0.000
y 0.000 1.632 0.000
z 0.000 0.000 -0.623
Polar
3z2-r2-1.247
x2-y2-1.760
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.303 0.000 0.000
y 0.000 0.303 0.000
z 0.000 0.000 1.697


<r2> (average value of r2) Å2
<r2> 12.996
(<r2>)1/2 3.605