DL-Alanine Singlet oxygen

Kruk, I.; Lichszteld, K.; Michalska, T.; Paraskevas, S.M.
Toxicol. Environ. Chem. 35, 167-173 (1992)

Reaction: CH₃CH(NH₂)CO₂H + ¹O₂^* ® products and/or physical quenching
Solvent: H₂O

k = 3.0 × 10⁷(L mol^-1 s^-1), pH = 10.6, T = 310K

Experimental method: Chemical reaction
Analytical method: infrared luminescence
Data type: Derived from steady state measurements

used solvent k_d = 3.2 × 10⁵ s^-1; soln. cont. 5 × 10^-4 mol L^-1 CoCl₂, ¹O₂* from autoxidation of oxytetracycline.

Matheson, I.B.C.; Lee, J.
Photochem. Photobiol. 29, 879-881 (1979)

Reaction: CH₃CH(NH₂)CO₂H + ¹O₂^* ® products
Solvent: D₂O

k_react = 2 × 10⁶(L mol^-1 s^-1), pH = 8.4, T = 293K

Experimental method: Photolysis
Analytical method: chemical analysis
Data type: Derived from steady state measurements

used solvent k_d = 2.9 × 10⁴ s^-1; high pressure O₂ (0.195 mol L^-1).

Matheson, I.B.C.; Etheridge, R.D.; Kratowich, N.R.; Lee, J.
Photochem. Photobiol. 21, 165-171 (1975)

Reaction: CH₃CH(NH₂)CO₂H + ¹O₂^* ® products and/or physical quenching
Reference Reaction: Bilirubin dianion + ¹O₂^* ®
Solvent: D₂O

k = 1.3 × 10⁶(L mol^-1 s^-1), pH = 8.1, T = 295K

Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements using indicator
Excitation wavelength: 1065 nm

used solvent k_d = 2.9 × 10⁴ s^-1; Indicator = Bilirubin dianion; high pressure O₂; recalc. [79MAT/LEE].

Nilsson, R.; Merkel, P.B.; Kearns, D.R.
Photochem. Photobiol. 16, 117-124 (1972)

Reaction: CH₃CH(NH₂)CO₂H + ¹O₂^* ® products and/or physical quenching
Solvent: H₂O, 50%, MeOH, 50%

k £ 1 × 10⁷(L mol^-1 s^-1)

Experimental method: Flash photolysis
Analytical method: vis-UV absorption
Data type: Absolute value measured directly using indicator
Excitation wavelength: 694 nm

Photosensitizer = Methylene Blue; Indicator = 1,3-Diphenylisobenzofuran.