Singlet oxygen quantum yields QY3

3-Benzoxazolepropanesulfonic acid, 2-[4-(1,3-dibutyltetrahydro-4,6-dioxo-2-thioxo-5-pyrimidinylidene)-2-butenylidene]-, sodium salt (Merocyanine 540)

Hoebeke, M.; Piette, J.; van de Vorst, A.
J. Photochem. Photobiol., B 9(3-4): 281-94 (1991)

Sensitizer: 3-Benzoxazolepropanesulfonic acid, 2-[4-(1,3-dibutyltetrahydro-4,6-dioxo-2-thioxo-5-pyrimidinylidene)-2-butenylidene]-, sodium salt (Merocyanine 540)
Solvent: H₂O (ves)
Oxygen concentration: O₂

Quantum yield of formation = 0.015-0.05

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

Singlet oxygen acceptor = DMA; lambda_exc = 376 nm. rel. to phi_Delta(MC540) in EtOH = 0.007; DMPC liposomes

Hoebeke, M.; Piette, J.; van de Vorst, A.
J. Photochem. Photobiol., B 9(3-4): 281-94 (1991)

Quantum yield of formation = 0.035-0.05

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

Reference sensitizer = RB; Singlet oxygen acceptor = ADPA; rel. to phi_Delta(ref. sens.) = 0.75; lambda_exc = 376 nm. DMPC liposomes; rel. to S' in H₂O; at 38degreeC phi_Delta increases by factor of 1.3

Sarna, T.; Pilas, B.; Lambert, C.; Land, E.J.; Truscott, T.G.
J. Photochem. Photobiol, A 58(3): 339-47 (1991)

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 = Ery; rel. to phi_Delta(ref. sens.) = 0.60.

Singh, R.J.; Feix, J.B.; Pintar, T.J.; Girotti, A.W.; Kalyanaraman, B.
Photochem. Photobiol. 53(4): 493-500 (1991)

Quantum yield of formation = 0.003

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

Reference sensitizer = RB; Singlet oxygen acceptor = His; rel. to phi_Delta(ref. sens.) = 0.76; lambda_exc = 568 nm. lambda_exc = 550 for RB.

Hoebeke, M.; Seret, A.; Piette, J.; van de Vorst, A.
J. Photochem. Photobiol., B 1(4): 437-46 (1988)

Quantum yield of formation = 0.007

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

Reference sensitizer = RB; Singlet oxygen acceptor = DPBF; rel. to phi_Delta(ref. sens.) = 0.86.

Hoebeke, M.; Seret, A.; Piette, J.; van de Vorst, A.
J. Photochem. Photobiol., B 1(4): 437-46 (1988)

Quantum yield of formation = 0.004

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

Reference sensitizer = RB; Singlet oxygen acceptor = DPBF; rel. to phi_Delta(ref. sens.) = 0.86. Rel. to S' in ethanol.

Davila, J.; Harriman, A.; Gulliya, K.S.
Photochem. Photobiol. 53(1): 1-11 (1991)

Quantum yield of formation = 0.03

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

Reference sensitizer = T(m-HOP)P; rel. to phi_Delta(ref. sens.) = 0.57; lambda_exc = 532 nm. Proportion of T₁ quenched by O₂ = 1.

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