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

using model chemistry: QCISD(T)/aug-cc-pVTZ

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 QCISD(T)/aug-cc-pVTZ
 hartrees
Energy at 0K-150.141745
Energy at 298.15K-150.141740
HF Energy-149.676928
Nuclear repulsion energy27.884191
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 QCISD(T)/aug-cc-pVTZ
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 1566 1514        

Unscaled Zero Point Vibrational Energy (zpe) 782.8 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 756.8 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 QCISD(T)/aug-cc-pVTZ
B
1.42953

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVTZ

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
O11.2143
O21.2143

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 QCISD(T)/aug-cc-pVTZ
 hartrees
Energy at 0K-150.094094
Energy at 298.15K-150.094086
HF Energy-149.587912
Nuclear repulsion energy27.604164
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 QCISD(T)/aug-cc-pVTZ
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 1467 1419        

Unscaled Zero Point Vibrational Energy (zpe) 733.6 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 709.3 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 QCISD(T)/aug-cc-pVTZ
B
1.40098

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVTZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.613
O2 0.000 0.000 -0.613

Atom - Atom Distances (Å)
  O1 O2
O11.2266
O21.2266

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