2,2,6,6-Tetramethyl-4-piperidone N-oxyl Singlet oxygen

Belford, R.E.; Seely, G.R.; Gust, D.; Moore, T.A.; Moore, A.; Cherepy, N.J.; Ekbundit, S.; Lewis, J.E.; Lin, S.H.
J. Photochem. Photobiol., A 70, 125-133 (1993)

Reaction: TAN + ¹O₂^* ® products and/or physical quenching
Solvent: CCl₄

k = 6.2 × 10⁵(L mol^-1 s^-1)

Experimental method: Flash photolysis
Analytical method: infrared luminescence
Data type: Absolute value measured directly
Excitation wavelength: 514 nm

Photosensitizer = 5,10,15,20-Tetraphenylporphine.

Belford, R.E.; Seely, G.R.; Gust, D.; Moore, T.A.; Moore, A.; Cherepy, N.J.; Ekbundit, S.; Lewis, J.E.; Lin, S.H.
J. Photochem. Photobiol., A 70, 125-133 (1993)

Reaction: TAN + ¹O₂^* ® products and/or physical quenching
Solvent: CH₂Cl₂

k = 6.3 × 10⁵(L mol^-1 s^-1)

Experimental method: Flash photolysis
Analytical method: infrared luminescence
Data type: Absolute value measured directly
Excitation wavelength: 514 nm

Photosensitizer = 5,10,15,20-Tetraphenylporphine.

Darmanyan, A.P.; Tatikolov, A.S.
J. Photochem. 32, 157-163 (1986)

Reaction: TAN + ¹O₂^* ® products and/or physical quenching
Solvent: C₆H₅CH₃

Activation energy = 6.7(kJ mol^-1), Log(A) = 7.274, Temperature range 243 to 293 K
k = 1.2 × 10⁶(L mol^-1 s^-1), T = 293K

Experimental method: Flash photolysis
Analytical method: infrared luminescence
Data type: Absolute value measured directly
Excitation wavelength: 347 nm

Photosensitizer = An and PP. [Sensitizer] = 1.0 × 10^-4 (mol L^-1).

Darmanyan, A.P.; Tatikolov, A.S.
J. Photochem. 32, 157-163 (1986)

Reaction: TAN + ¹O₂^* ® products and/or physical quenching
Solvent: CH₃CN

k = 1.3 × 10⁶(L mol^-1 s^-1), T = 293K

Experimental method: Flash photolysis
Analytical method: infrared luminescence
Data type: Absolute value measured directly
Excitation wavelength: 347 nm

Photosensitizer = An and PP. [Sensitizer] = 1.0 × 10^-4 (mol L^-1).

Darmanyan, A.P.; Tatikolov, A.S.
J. Photochem. 32, 157-163 (1986)

Reaction: TAN + ¹O₂^* ® products and/or physical quenching
Solvent: CH₃CH₂OH

k = 1.3 × 10⁶(L mol^-1 s^-1), T = 293K

Experimental method: Flash photolysis
Analytical method: infrared luminescence
Data type: Absolute value measured directly
Excitation wavelength: 347 nm

Photosensitizer = An and PP. [Sensitizer] = 1.0 × 10^-4 (mol L^-1).

Bartlett, P.D.; Mendenhall, G.D.; Durham, D.L.
J. Org. Chem. 45, 4269-4271 (1980)

Reaction: TAN + ¹O₂^* ® products and/or physical quenching
Reference Reaction: Rub + ¹O₂^* ®
Solvent: MeOH, 67%, C₆H₆, 33%

k/k_reference = 40
T = 298K

Experimental method: Chemical reaction
Data type: Relative value measured by steady state method

¹O₂* from (PhO)₃PO₃; meas. k/k_ref = 40.