Singlet oxygen quantum yields QY2

20-Phorbinecarboxylic acid, 3,4-didehydro-3,4,8,9,13,14,18,19-octaethyl-18,19-dihydro-, ethyl ester (Octaethyldihydropurpurin ethyl ester)

Macpherson, A.N.; Kessel, D.; Morgan, A.R.; Munro, I.; Truscott, T.G.
J. Chem. Soc., Faraday Trans. 86(18): 3081-5 (1990)

Sensitizer: 20-Phorbinecarboxylic acid, 3,4-didehydro-3,4,8,9,13,14,18,19-octaethyl-18,19-dihydro-, ethyl ester (Octaethyldihydropurpurin ethyl ester)
Solvent: MeOH
Oxygen concentration: air

Quantum yield of formation = 0.71

Experimental method: pulsed laser photolysis
Data type: luminescence intensity at end-of-pulse or under steady-state conditions

Reference sensitizer = HP; rel. to phi_Delta(ref. sens.) = 0.64; meas. phi_T(S) = 0.86. f_Delta^T = 0.83 assuming PSO2 = 0; Proportion of T₁ quenched by O₂ = 1; secondary phi_Delta(ref. sens.) = 0.41, Reference sensitizer = ZnPCS.

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