Mesobilirubin IX Singlet oxygen

Lightner, D.A.; Park, Y.-T.
Experientia 34, 555-557 (1978)

Reaction: Mesobilirubin IX + ¹O₂^* ® products and/or physical quenching
Solvent: CHCl₃

k = 2.8 × 10⁹(L mol^-1 s^-1)

Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements
Excitation wavelength: 560 nm

Photosensitizer = Rose Bengal complexed with dicyclohexyl-18-crown-8; used solvent k_d = 1.7 × 10⁴ s^-1; k_prod. = 5.9 × 10⁸ L/(mol·s) derived using sensitizer quantum yield. [Indicator] = 1 × 10^-5 (mol L^-1).

Lightner, D.A.; Park, Y.-T.
Experientia 34, 555-557 (1978)

Reaction: Mesobilirubin IX + ¹O₂^* ® products and/or physical quenching
Solvent: MeOH

k = 2.5 × 10⁹(L mol^-1 s^-1)

Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements
Excitation wavelength: 557 nm

Photosensitizer = Rose Bengal dianion; used solvent k_d = 1.4 × 10⁵ s^-1; soln. contg. 2% NH₄OH; k_prod. = 7.9 × 10⁸ L/(mol·s) derived using sensitizer quantum yield. [Indicator] = 1 × 10^-5 (mol L^-1).