Singlet oxygen quantum yields QY2_

Chlorophyll a

Egorov, S.Yu.; Krasnovsky, A.A.,Jr.; Vychegzhanina, I.V.; Drozdova, N.N.; Krasnovskii, A.A.
Doklady Biophys. 310(2): 6-10 (1990)

Sensitizer: Chlorophyll a
Solvent: (C₂H₅)₂O
Oxygen concentration: air^a

Quantum yield of formation = 0.52

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

Reference sensitizer = TPP; rel. to phi_Delta(ref. sens.) = 0.70; lambda_exc = 337 nm.

Livingston, R.; Owens, K.E.
J. Am. Chem. Soc. 78(14): 3301-5 (1956)

Sensitizer: Chlorophyll a
Solvent: i-C₅H₁₁OH
Oxygen concentration: air^a

Quantum yield of formation = 0.77

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

Singlet oxygen acceptor = ATU; lambda_exc = 436 nm.

Egorov, S.Yu.; Krasnovsky, A.A.,Jr.; Vychegzhanina, I.V.; Drozdova, N.N.; Krasnovskii, A.A.
Doklady Biophys. 310(2): 6-10 (1990)

Sensitizer: Chlorophyll a
Solvent: C₅H₅N
Oxygen concentration: air^a

Quantum yield of formation = 0.59

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

Reference sensitizer = TPP; rel. to phi_Delta(ref. sens.) = 0.70; lambda_exc = 337 nm.

Petsold, O.M.; Byteva, I.M.; Gurinovich, G.P.
Opt. Spectrosc. (Engl. Transl.) 34(3): 343-4 (1973)

Sensitizer: Chlorophyll a
Solvent: C₅H₅N
Oxygen concentration: O₂

Quantum yield of formation = 0.49

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

Singlet oxygen acceptor = H₂NCSNH₂; lambda_exc = 430 nm. Assumed f_r^A = 2.

Livingston, R.; Owens, K.E.
J. Am. Chem. Soc. 78(14): 3301-5 (1956)

Sensitizer: Chlorophyll a
Solvent: c-C₆H₁₁OH
Oxygen concentration: air^a

Quantum yield of formation = 0.77

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

Singlet oxygen acceptor = ATU; lambda_exc = 436 nm.

Livingston, R.; Owens, K.E.
J. Am. Chem. Soc. 78(14): 3301-5 (1956)

Sensitizer: Chlorophyll a
Solvent: C₆H₅CH₂OH
Oxygen concentration: air^a

Quantum yield of formation = 0.77

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

Singlet oxygen acceptor = ATU; lambda_exc = 436 nm.

Dzhagarov, B.M.; Sarin, E.I.; Ganzha, V.A.; Gurinovich, G.P.
Khim. Fiz. 6(7): 919-28 (1987)

Sensitizer: Chlorophyll a
Solvent: C₆H₅CH₃
Oxygen concentration: air^a

Quantum yield of formation = 0.60

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

Reference sensitizer = PdMPDME; rel. to phi_Delta(ref. sens.) = 1; lambda_exc = 347 nm.

Tanielian, C.; Golder, L.; Wolff, C.
J. Photochem. 25(2-4): 117-25 (1984)

Sensitizer: Chlorophyll a
Solvent: C₆H₅CH₃
Oxygen concentration: 8.5 x 10^-3

Quantum yield of formation = 0.68

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

Reference sensitizer = MB⁺; Singlet oxygen acceptor = TME; rel. to phi_Delta(ref. sens.) = 0.50. Rel. to S' in MeOH.

Tanielian, C.; Golder, L.; Wolff, C.
J. Photochem. 25(2-4): 117-25 (1984)

Sensitizer: Chlorophyll a
Solvent: C₆H₆
Oxygen concentration: 9.1 x 10^-3

Quantum yield of formation = 0.60

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

Reference sensitizer = MB⁺; Singlet oxygen acceptor = TME; rel. to phi_Delta(ref. sens.) = 0.50. Rel. to S' in MeOH.

Krasnovsky, A.A.,Jr.
Photochem. Photobiol. 29(1): 29-36 (1979)

Sensitizer: Chlorophyll a
Solvent: CCl₄
Oxygen concentration: air

Quantum yield of formation = 0.57

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

Reference sensitizer = Ph a. Proportion of T₁ quenched by O₂ = 1; reported 0.55 in [79A010]; recalcd. in [90R045] rel. to phi_Delta(TPP) = 0.70.

Dzhagarov, B.M.; Sarin, E.I.; Ganzha, V.A.; Gurinovich, G.P.
Khim. Fiz. 6(7): 919-28 (1987)

Sensitizer: Chlorophyll a
Solvent: CH₃CN
Oxygen concentration: air^a

Quantum yield of formation = 0.60

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

Reference sensitizer = PdMPDME; rel. to phi_Delta(ref. sens.) = 1; lambda_exc = 347 nm.

Egorov, S.Yu.; Krasnovsky, A.A.,Jr.; Vychegzhanina, I.V.; Drozdova, N.N.; Krasnovskii, A.A.
Doklady Biophys. 310(2): 6-10 (1990)

Sensitizer: Chlorophyll a
Solvent: D₂O (mic)
Oxygen concentration: air^a

Quantum yield of formation = 0.35

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.) = 0.70; lambda_exc = 337 nm. Soln. cont. 2% Triton X-100.

Egorov, S.Yu.; Krasnovsky, A.A.,Jr.; Vychegzhanina, I.V.; Drozdova, N.N.; Krasnovskii, A.A.
Doklady Biophys. 310(2): 6-10 (1990)

Sensitizer: Chlorophyll a
Solvent: D₂O/EtOH (95:5)
Oxygen concentration: air^a

Quantum yield of formation < 0.02

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.) = 0.70; lambda_exc = 337 nm.

Kraljic, I.; Barboy, N.; Leicknam, J.-P.
Photochem. Photobiol. 30(6): 631-3 (1979)

Sensitizer: Chlorophyll a
Solvent: H₂O (mic)
Oxygen concentration: air

Quantum yield of formation = 0.70-0.85

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

Singlet oxygen acceptor = Im; Product from substrate = Imidazole endoperoxide; lambda_exc = 660 nm. Soln. contg. 1% Triton X-100; assumed f_r^A = 0.17-0.2.

Livingston, R.; Owens, K.E.
J. Am. Chem. Soc. 78(14): 3301-5 (1956)

Sensitizer: Chlorophyll a
Solvent: MeOH
Oxygen concentration: air^a

Quantum yield of formation = 0.77

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

Singlet oxygen acceptor = ATU; lambda_exc = 436 nm.

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