2-Methyl-6-phenylimidazo[1,2-a]pyrazin-3-one Singlet oxygen

Suzuki, N.; Mizumoto, I.; Toya, Y.; Nomoto, T.; Mashiko, S.; Inaba, H.
Agric. Biol. Chem. 54, 2783-2787 (1990)

Reaction: 2-Methyl-6-phenylimidazo[1,2-a]pyrazin-3-one + ¹O₂^* ® products and/or physical quenching
Solvent: H₂O

k = 6.3 × 10⁸(L mol^-1 s^-1), pH = 7.1

Experimental method: Photolysis
Analytical method: infrared luminescence
Data type: Derived from steady state measurements
Excitation wavelength: 514.5 nm

Photosensitizer = Rose Bengal dianion; used solvent k_d = 2.4 × 10⁵ s^-1. [Sensitizer] = 5 × 10^-4 (mol L^-1).