1,4-Diamino-2-methoxyanthraquinone Singlet oxygen

Rtishchev, N.I.; Studzinskii, O.P.; Ponomareva, R.P.
J. Org. Chem. USSR 24, 1150-1154 (1988)

Reaction: 1,4-Diamino-2-methoxyanthraquinone + ¹O₂^* ® products and/or physical quenching
Reference Reaction: 1,2-Diaminoanthraquinone + ¹O₂^* ®
Solvent: 2-PrOH, 83%, H₂O, 17%

k/k_reference = 5 × 10^-2
T = 295K

Experimental method: Chemical reaction
Analytical method: vis-UV absorption
Data type: Relative value measured by steady state method

meas. k/k_ref = 0.05; ¹O₂* from NaOCl/H₂O₂.

Venediktov, E.A.; Krasnovsky, A.A.,Jr.
Opt. Spectrosc. (USSR) 52, 338-339 (1982)

Reaction: 1,4-Diamino-2-methoxyanthraquinone + ¹O₂^* ® products and/or physical quenching
Solvent: CCl₄

k = 1 × 10⁸(L mol^-1 s^-1)

Experimental method: Modulated photolysis
Analytical method: infrared luminescence
Data type: Derived from steady state measurements

Photosensitizer = 5,10,15,20-Tetraphenylporphine. used solvent k_d = 36 s^-1. <1% product formation. [Sensitizer] = 1-5 × 10^-6 (mol L^-1).