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

using model chemistry: QCISD/6-311G**

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/6-311G**
 hartrees
Energy at 0K-150.026170
Energy at 298.15K-150.026167
HF Energy-149.655981
Nuclear repulsion energy28.172349
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/6-311G**
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 1662 1586 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 831.2 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 793.1 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 QCISD/6-311G**
B
1.45857

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.601
O2 0.000 0.000 -0.601

Atom - Atom Distances (Å)
  O1 O2
O11.2021
O21.2021

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/6-311G**
 hartrees
Energy at 0K-149.973074
Energy at 298.15K-149.973069
HF Energy-149.568754
Nuclear repulsion energy27.942979
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/6-311G**
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 1582 1509 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 790.9 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 754.6 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/6-311G**
B
1.43492

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**

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
O11.2120
O21.2120

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