Singlet oxygen quantum yields QY2

Phthalocyanine, sulfo- (mixed di-, tri- and tetrasulfo)

Truscott, T.G.
J. Chem. Soc., Faraday Trans. 2 82(12): 2177-81 (1986)

Sensitizer: Phthalocyanine, sulfo- (mixed di-, tri- and tetrasulfo)
Solvent: D₂O (mic)
Oxygen concentration: air^a

Quantum yield of formation = 0.1

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

Reference sensitizer = H₂TPPS^4–; rel. to phi_Delta(ref. sens.) = 0.67; meas. phi_T(S) = 0.25; lambda_exc = 347 nm. f_Delta^T = 0.4 assuming PSO2 = 0. Soln. cont. 0.01 mol L^-1 CTAB.

Rosenthal, I.; Krishna, C.M.; Riesz, P.; Ben-Hur, E.
Radiat. Res. 107(1): 136-42 (1986)

Sensitizer: Phthalocyanine, sulfo- (mixed di-, tri- and tetrasulfo)
Solvent: H₂O
Oxygen concentration: air

Quantum yield of formation = 0.14

Experimental method: continuous photolysis
Data type: product appearance under steady-state conditions

Reference sensitizer = RB; Singlet oxygen acceptor = Im; Product from substrate = Imidazole endoperoxide; rel. to phi_Delta(ref. sens.) = 0.75; lambda_exc = 670 nm. RNO as monitor of P; used Proportion of T₁ quenched by O₂ = 1, phi_Delta(ref. sens.) at lambda_exc = 550 nm, cor. to 670 nm.

Wagner, J.R.; Ali, H.; Langlois, R.; Brasseur, N.; van Lier, J.E.
Photochem. Photobiol. 45(5): 587-94 (1987)

Sensitizer: Phthalocyanine, sulfo- (mixed di-, tri- and tetrasulfo)
Solvent: H₂O/MeOH (1:1)
Oxygen concentration: O₂

Quantum yield of formation = 0.12

Experimental method: continuous photolysis
Data type: product appearance under steady-state conditions

Singlet oxygen acceptor = TrpH; lambda_exc = 688 nm.

Wagner, J.R.; Ali, H.; Langlois, R.; Brasseur, N.; van Lier, J.E.
Photochem. Photobiol. 45(5): 587-94 (1987)

Sensitizer: Phthalocyanine, sulfo- (mixed di-, tri- and tetrasulfo)
Solvent: H₂O/MeOH (1:1)
Oxygen concentration: O₂

Quantum yield of formation = 0.10

Experimental method: continuous photolysis
Data type: product appearance under steady-state conditions

Singlet oxygen acceptor = TrpH; lambda_exc = 654 nm.

Borland, C.F.; McGarvey, D.J.; Truscott, T.G.; Codgell, R.J.; Land, E.J.
J. Photochem. Photobiol., B, Biol. 1(1): 93-101 (1987)

Sensitizer: Phthalocyanine, sulfo- (mixed di-, tri- and tetrasulfo)
Solvent: MeOD
Oxygen concentration: air^a

Quantum yield of formation = 0.21*; 0.17

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.) = 0.53; meas. phi_T(S) = 0.22; lambda_exc = 347 nm. f_Delta^T = 0.93 assuming PSO2 = 0; used Proportion of T₁ quenched by O₂ = 1; recalcd. using phi_Delta(ref. sens.) = 0.64 from [88Z155].

Borland, C.F.; McGarvey, D.J.; Truscott, T.G.; Codgell, R.J.; Land, E.J.
J. Photochem. Photobiol., B, Biol. 1(1): 93-101 (1987)

Sensitizer: Phthalocyanine, sulfo- (mixed di-, tri- and tetrasulfo)
Solvent: MeOD
Oxygen concentration: air^a

Quantum yield of formation = 0.1

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.) = 0.53; meas. phi_T(S) = 0.22; lambda_exc = 694 nm. f_Delta^T = 0.6 assuming PSO2 = 0; used Proportion of T₁ quenched by O₂ = 1.

^a Oxygen concentration not given; assumed to be air saturated.
* Values recalculated using phi_Delta(S') or f_Delta^T(S') from Table 4 or from the quoted reference.
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