Singlet oxygen quantum yields QY1_

Acridinium, 3,6-diamino- (Proflavine)

Usui, Y.
Chem. Lett. (Tokyo) (7): 743-4 (1973)

Sensitizer: Acridinium, 3,6-diamino- (Proflavine)
Solvent: H₂O
Oxygen concentration: air^a

Quantum yield of formation = 0.12
Fraction of T₁ yielding singlet oxygen = 0.25

Experimental method: continuous photolysis
Data type: substrate consumption under steady-state conditions

Reference sensitizer = MB⁺; Singlet oxygen acceptor = 2,5-DMF; rel. to phi_Delta(ref. sens.) = 0.52; used phi_T(S) = 0.47. Assumed Proportion of T₁ quenched by O₂ = 1.

^a Oxygen concentration not given; assumed to be air saturated.
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