Glycyltryptophan Singlet oxygen

Bertolotti, S.G.; Garcia, N.A.; Arguello, G.A.
J. Photochem. Photobiol., B 10, 57-70 (1991)

Reaction: GlyTrpH + ¹O₂^* ® products and/or physical quenching
Solvent: EtOH, 80%, CH₃CN, 20%

k = 1.2 × 10⁷(L mol^-1 s^-1)

Experimental method: Flash photolysis
Analytical method: infrared luminescence
Data type: Absolute value measured directly
Excitation wavelength: 598 nm

Photosensitizer = 5,10,15,20-Tetraphenylporphinatozinc(II).

Bertolotti, S.G.; Garcia, N.A.; Arguello, G.A.
J. Photochem. Photobiol., B 10, 57-70 (1991)

Reaction: GlyTrpH + ¹O₂^* ® products
Solvent: EtOH, 80%, CH₃CN, 20%

k_react = 9.8 × 10⁵(L mol^-1 s^-1), k_reference = 3 × 10⁷(L mol^-1 s^-1)

Experimental method: Photolysis
Analytical method: vis-UV emission
Data type: Derived from steady state measurements

Photosensitizer = 5,10,15,20-Tetraphenylporphinatozinc(II); Actinometer = 9,10-Dimethylanthracene.

Bertolotti, S.G.; Garcia, N.A.; Arguello, G.A.
J. Photochem. Photobiol., B 10, 57-70 (1991)

Reaction: GlyTrpH + ¹O₂^* ® products
Reference Reaction: DL-Met + ¹O₂^* ®
Solvent: H₂O

k_react = 5.1 × 10⁷(L mol^-1 s^-1), k_reference = 2 × 10⁷(L mol^-1 s^-1), pH = 7

Experimental method: Photolysis
Analytical method: oxygen consumption
Data type: Relative value measured by steady state method

Photosensitizer = Rose Bengal dianion.

Lozovskaya, E.L.; Sapezhinskii, I.I.
Russ. J. Phys. Chem. 64, 537-539 (1990)

Reaction: GlyTrpH + ¹O₂^* ® products and/or physical quenching
Solvent: H₂O

k ~ 2 × 10⁸(L mol^-1 s^-1), pH = 7

Experimental method: Photolysis
Analytical method: infrared luminescence
Data type: Derived from steady state measurements
Excitation wavelength: 546 nm

Photosensitizer = Erythrosin dianion. used solvent k_d = 3 × 10⁵ s^-1.