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

using model chemistry: MP3/6-31G*

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 MP3/6-31G*
 hartrees
Energy at 0K-149.943193
Energy at 298.15K-149.943190
HF Energy-149.614197
Nuclear repulsion energy27.960003
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 MP3/6-31G*
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 1725 1619 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 862.3 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 809.3 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 MP3/6-31G*
B
1.43667

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.606
O2 0.000 0.000 -0.606

Atom - Atom Distances (Å)
  O1 O2
O11.2113
O21.2113

picture of Oxygen diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (1Δg)

Jump to S1C1
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-149.886494
Energy at 298.15K-149.886491
HF Energy-149.527825
Nuclear repulsion energy27.816462
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 MP3/6-31G*
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 1686 1582 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 842.9 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 791.1 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 MP3/6-31G*
B
1.42196

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.609
O2 0.000 0.000 -0.609

Atom - Atom Distances (Å)
  O1 O2
O11.2175
O21.2175

picture of Oxygen diatomic state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability