Singlet oxygen quantum yields QY1

Allopsoralen (Furo[2,3-f]benzopyran-7-one)

Knox, C.N.; Land, E.J.; Truscott, T.G.
J. Photochem. Photobiol., B 1(3): 315-21 (1988)

Sensitizer: Allopsoralen (Furo[2,3-f]benzopyran-7-one)
Solvent: C₆H₆
Oxygen concentration: O₂

Quantum yield of formation = 0.08*; 0.07^T
Fraction of T₁ yielding singlet oxygen = __; 0.41

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

Reference sensitizer = Ac; rel. to phi_Delta(ref. sens.) = 0.73; meas. phi_T(S) = 0.17; lambda_exc = 355 nm. Proportion of T₁ quenched by O₂ = 1.

^T Value corrected for 100% quenching of T₁.
* Values recalculated using phi_Delta(S') or f_Delta^T(S') from Table 4 or from the quoted reference.
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