Anthrone, 1,8-dihydroxy- (Anthralin)

Sensitizer: Anthrone, 1,8-dihydroxy- (Anthralin)
Solvent: C₆H₆
Oxygen concentration: air

Quantum yield of formation < 0.01

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

Reference sensitizer = Np; rel. to phi_Delta(ref. sens.) = 0.55; lambda_exc = 355 nm. Proportion of T₁ quenched by O₂ > 0.94; no detectable luminescence.

Sensitizer: Anthrone, 1,8-dihydroxy- (Anthralin)
Solvent: C₆H₆
Oxygen concentration: air

Fraction of T₁ yielding singlet oxygen = 0.77*; 0.64

Experimental method: pulsed radiolysis
Data type: triplet beta-carotene buildup as a probe for singlet oxygen production

Reference sensitizer = BP; TSinglet oxygen acceptor = Car; rel. to f_Delta^T(ref. sens.) = 0.29; used epsilon_T(S) = 4770 L mol^-1 cm^-1 at 560 nm, epsilon_T(ref. sens.) = 7630 L mol^-1 cm^-1 at 532.5 nm. Proportion of T₁ quenched by O₂ > 0.94.

Sensitizer: Anthrone, 1,8-dihydroxy- (Anthralin)
Solvent: DMSO
Oxygen concentration: air

Quantum yield of formation = 0

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

Reference sensitizer = RB. No detectable phosphorescence.

Sensitizer: Anthrone, 1,8-dihydroxy- (Anthralin)
Solvent: EtOH
Oxygen concentration: air

Quantum yield of formation = 0

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

Reference sensitizer = RB. No detectable phosphorescence.

Sensitizer: Anthrone, 1,8-dihydroxy- (Anthralin)
Solvent: CH₃CN
Oxygen concentration: air

Quantum yield of formation = 0

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

Reference sensitizer = RB. HCl added; no detectable phosphorescence.