1,4-Benzoquinone Singlet oxygen

Koka, P.; Song, P.-S.
Photochem. Photobiol. 28, 509-515 (1978)

Reaction: Q + ¹O₂^* ® products and/or physical quenching
Reference Reaction: Chlorophyll a + ¹O₂^* ®
Solvent: C₆H₆, 67%, EtOH, 33%

k = 1.6 × 10⁷(L mol^-1 s^-1)

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

Photosensitizer = Rose Bengal dianion. Indicator = Chlorophyll a; used solvent k_d = 1 × 10⁵ s^-1.

Koka, P.; Song, P.-S.
Photochem. Photobiol. 28, 509-515 (1978)

Reaction: Q + ¹O₂^* ® products and/or physical quenching
Reference Reaction: Chlorophyll a + ¹O₂^* ®
Solvent: EtOH

k = 3.4 × 10⁷(L mol^-1 s^-1)

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

Photosensitizer = Rose Bengal dianion. Indicator = Chlorophyll a. used solvent k_d = 1 × 10⁵ s^-1.