Quantum yield of singlet molecular oxygen sensitization by copper(II) tetracarboxyphthalocy anine
The quantum yield φΔ for sensitization of singlet molecular oxygen, O2(1Δg), by copper(II) tetracarboxyphthalocyanine (CuTCPc) in dimethyl sulphoxide was determined under stationary illumination, using diphenyl-isobenzofurane as chemical quencher. A constant value of φΔ = 0.16 ± 0.03 was obtained, i...
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1989
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| 100 | 1 | |a Lagorio, M.G. | |
| 245 | 1 | 0 | |a Quantum yield of singlet molecular oxygen sensitization by copper(II) tetracarboxyphthalocy anine |
| 260 | |c 1989 | ||
| 270 | 1 | 0 | |m Braslavsky, S.E.; Max-Planck-Institut für Strahlenchemie, Stiftstrasse 34-46, D-4330 Mulheim a.d. Ruhr, Germany |
| 504 | |a Darwent, Douglas, Harriman, Porter, Richoux, Metal phthalocyanines and porphyrins as sensitizers for reduction of water to hydrogen (1982) Coord. Chem . Rev., 44, pp. 83-126 | ||
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| 504 | |a Ferraudi, Argüello, Ali, van Lier, Types I and II sensitized photooxidation of aminoacid by phthalocyanines: a flash photochemical study (1988) Photochem. Photobiol., 47, pp. 657-660 | ||
| 504 | |a Langlois, Ali, Brasseur, Wagner, van Lier, Biological activities of phthalocyanines. IV. Type II sensitized photooxidation of l-tryptophan and cholesterol by sulphonated metallophthalocyanines (1986) Photochem. Photobiol., 44, pp. 117-123. , and references cited therein | ||
| 504 | |a Spikes, The historical development of ideas on applications of photosensitized reactions in the health sciences (1985) Primary Photo-Processes in Biology and Medicine, 85 A, pp. 209-227. , R.V. Bensasson, G. Jori, E. Land, T. Truscott, Plenum, New York, NATO ASI Series | ||
| 504 | |a Spikes, Phthalocyanines as photosensitizers in biological systems and for the photodynamic therapy of tumors (1986) Photochem. Photobiol., 43, pp. 691-699 | ||
| 504 | |a Ben-Hur, Photochemistry and photobiology of phthalocyanines: new photosensitizers for photodynamic therapy of cancer (1987) From Photophysics to Photobiology, pp. 407-420. , A. Favre, R. Tyrrell, J. Cadet, Elsevier, Amsterdam | ||
| 504 | |a Bernauer, Fallab, Phthalocyanine in wässeriger Lösung I (1961) Helvetica Chimica Acta, 44, pp. 1287-1292 | ||
| 504 | |a Darwent, Photoreduction of methyl viologen in micellar solutions sensitized by zinc phthalocyanine (1980) Journal of the Chemical Society, Chemical Communications, pp. 805-807 | ||
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| 504 | |a Achar, Fohlen, Parker, A new solid-phase polymerization —metal phthalocyanine sheet polymers (1983) J. Polym. Sci., 21, pp. 589-597 | ||
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| 504 | |a Wegner, Adamson, Photochemistry of complex ions. III Absolute quantum yields for the photolysis of some aqueous chromium(III) complexes. Chemical actinometry in the long wavelength visible region (1966) J. Am. Chem. Soc., 88, pp. 394-404 | ||
| 504 | |a Young, Brewer, The mechanism of quenching of singlet oxygen (1978) Singlet Oxygen. Reaction with Organic Compounds and Polymers, pp. 36-47. , B. Ranby, J.F. Rabek, Wiley, New York | ||
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| 504 | |a Foote, Ching, Chemistry of 1O2. XXI. Kinetics of bilirubin photooxygenation (1975) J. Am. Chem. Soc., 97, pp. 6209-6214 | ||
| 504 | |a Matheson, Lee, Yamanashi, Wolbarsht, Measurement of the absolute rate constants for singlet molecular oxygen reaction with 1,3-diphenilisobenzofuran and physical quenching by ground state molecular oxygen (1974) J. Am. Chem. Soc., 96, pp. 3343-3348 | ||
| 504 | |a Flood, Russell, Wan, Quenching of singlet molecular oxygen by polyolefin additives in carbondisulfide solution (1973) Macromolecules, 6, pp. 669-671 | ||
| 506 | |2 openaire |e Política editorial | ||
| 520 | 3 | |a The quantum yield φΔ for sensitization of singlet molecular oxygen, O2(1Δg), by copper(II) tetracarboxyphthalocyanine (CuTCPc) in dimethyl sulphoxide was determined under stationary illumination, using diphenyl-isobenzofurane as chemical quencher. A constant value of φΔ = 0.16 ± 0.03 was obtained, independent of sensitizer concentration in the range 2-26 μM even though dimers and possibly oligomers are present at the highest concentrations. The monomer and the aggregates of CuTCPc physically quench O2(1Δg) with a nearly diffusional rate constant. © 1989. |l eng | |
| 536 | |a Detalles de la financiación: Universidad de Buenos Aires | ||
| 536 | |a Detalles de la financiación: Trimellitic anhydride was kindly provided by Dr. J. F. Sproviero (Alba, Argentina). We thank UMYMFOR (University of Buenos Aires) for the elemental analysis. M.G.L. is the recipient of a graduate student fellowship from the University of Buenos Aires. This work has been supported by research grants provided by CONICET (Consejo National de Investigaciones Cientificas y Technicas) and by the Stiftung Volkswagenwerk (F.R.G.). S.E.B. thanks the Max Planck Society for generous support and Professor K. Schaffner for his constant interest and encouragement. | ||
| 593 | |a Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina | ||
| 593 | |a Max-Planck-Institut für Strahlenchemie, Stiftstrasse 34-46, D-4330 Mulheim a.d. Ruhr, Germany | ||
| 690 | 1 | 0 | |a COPPER(II) TETRACARBOXYPHTHALOCYANINE |
| 690 | 1 | 0 | |a QUANTUM YIELD |
| 690 | 1 | 0 | |a SINGLET MOLECULAR OXYGEN |
| 700 | 1 | |a Dicelio, L.E. | |
| 700 | 1 | |a San Román, E.A. | |
| 700 | 1 | |a Braslavsky, Silvia Elsa | |
| 773 | 0 | |d 1989 |g v. 3 |h pp. 615-624 |k n. 4 |p J. Photochem. Photobiol. B Biol. |x 10111344 |w (AR-BaUEN)CENRE-515 |t Journal of Photochemistry and Photobiology, B: Biology | |
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