Quercetin Singlet oxygen

Tournaire, C.; Croux, S.; Maurette, M.-T.; Beck, I.; Hocquaux, M.; Braun, A.M.; Oliveros, E.
J. Photochem. Photobiol., B 19, 205-215 (1993)

Reaction: Quercetin + ¹O₂^* ® products and/or physical quenching
Solvent: CD₃OD

k = 2.4 × 10⁶(L mol^-1 s^-1)

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

Photosensitizer = Rose Bengal dianion. used solvent k_d = 4.0 × 10³ s^-1.

Tournaire, C.; Croux, S.; Maurette, M.-T.; Beck, I.; Hocquaux, M.; Braun, A.M.; Oliveros, E.
J. Photochem. Photobiol., B 19, 205-215 (1993)

Reaction: Quercetin + ¹O₂^* ® products
Solvent: CH₃OD

k_react = 8.9 × 10⁵(L mol^-1 s^-1)

Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements
Excitation wavelength: 546 nm

Photosensitizer = Rose Bengal dianion; used solvent k_d = 1 × 10⁵ s^-1; Mesodiphenylhelianthrene as actinometer.

Darmanyan, A.P.; Kasaikina, O.T.; Khrameeva, N.P.
Khim. Fiz. 6, 1083-1092 (1987)

Reaction: Quercetin + ¹O₂^* ® products
Reference Reaction: Anthracene + ¹O₂^* ®
Solvent: Acetonitrile

k_react = 9.3 × 10³(L mol^-1 s^-1), k_reference = 2.8 × 10⁵(L mol^-1 s^-1), T = 295K

Experimental method: Photolysis
Data type: Relative value measured by steady state method
Excitation wavelength: 347 nm

Photosensitizer = Protoporphyrin.

Darmanyan, A.P.; Kasaikina, O.T.; Khrameeva, N.P.
Khim. Fiz. 6, 1083-1092 (1987)

Reaction: Quercetin + ¹O₂^* ® products and/or physical quenching
Solvent: Acetone

k = 3.1 × 10⁵(L mol^-1 s^-1), T = 295K

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

Photosensitizer = Protoporphyrin.