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Bourdelande, J.L.; Karzazi, M.; Dicelio, L.E.; Litter, M.I.; Tura, G.M.; San Román, E.; Vinent, V. "Phthalocyanines bound to insoluble polystyrene. Synthesis and properties as energy-transfer photosensitizers" (1997) Journal of Photochemistry and Photobiology A: Chemistry. 108(2-3):273-282
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Abstract:

Metallotetracarboxyphthalocyanines (MTCPc, M = Cu, Al) were bound to the amino groups of Amberlite IRA-93 by arnide bonding. The insoluble materials obtained were characterized by IR absorption, visible absorption and diffuse reflectance, and ICP atomic emission spectroscopy, and tested for energy transfer under irradiation in the phthalocyanine Q-band. Samples containing AlTCPc are strongly fluorescent both in the solid state and in DMF suspension. Fluorescence quantum yields decrease sharply in toluene suspension. In the solid state, fluorescence may be quantitatively quenched by energy-transfer to an adsorbed dye. Singlet molecular oxygen (1O2) quantum yields were obtained in suspension by monitoring the photooxidation of diphenylisobenzofuran. Values are drastically reduced in DMF suspension and even more in toluene suspension relative to homogeneous solution. This fact is attributed to dye aggregation (M = Cu) and excited-state self-quenching (M = Al). Results can be rationalized by assuming that MTCPc incorporation occurs mainly at the polymer surface and that dye-to-dye interaction in suspension depends strongly on the environment. © 1997 Elsevier Science S.A.

Registro:

Documento: Artículo
Título:Phthalocyanines bound to insoluble polystyrene. Synthesis and properties as energy-transfer photosensitizers
Autor:Bourdelande, J.L.; Karzazi, M.; Dicelio, L.E.; Litter, M.I.; Tura, G.M.; San Román, E.; Vinent, V.
Filiación:Departamento de Química, Unidade de Quimica Orgánica, Univ. Autónoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
Facultad de Ciencias Exactas, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Unidad de Actividad Química, Comision Natl. de Energia Atomica, Av. del Libertador 8250, 1429 Buenos Aires, Argentina
Palabras clave:Fluorescence; Insoluble polymers; Phthalocyanines; Singlet molecular oxygen
Año:1997
Volumen:108
Número:2-3
Página de inicio:273
Página de fin:282
DOI: http://dx.doi.org/10.1016/S1010-6030(97)00096-8
Título revista:Journal of Photochemistry and Photobiology A: Chemistry
Título revista abreviado:J. Photochem. Photobiol. A Chem.
ISSN:10106030
CODEN:JPPCE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10106030_v108_n2-3_p273_Bourdelande

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Citas:

---------- APA ----------
Bourdelande, J.L., Karzazi, M., Dicelio, L.E., Litter, M.I., Tura, G.M., San Román, E. & Vinent, V. (1997) . Phthalocyanines bound to insoluble polystyrene. Synthesis and properties as energy-transfer photosensitizers. Journal of Photochemistry and Photobiology A: Chemistry, 108(2-3), 273-282.
http://dx.doi.org/10.1016/S1010-6030(97)00096-8
---------- CHICAGO ----------
Bourdelande, J.L., Karzazi, M., Dicelio, L.E., Litter, M.I., Tura, G.M., San Román, E., et al. "Phthalocyanines bound to insoluble polystyrene. Synthesis and properties as energy-transfer photosensitizers" . Journal of Photochemistry and Photobiology A: Chemistry 108, no. 2-3 (1997) : 273-282.
http://dx.doi.org/10.1016/S1010-6030(97)00096-8
---------- MLA ----------
Bourdelande, J.L., Karzazi, M., Dicelio, L.E., Litter, M.I., Tura, G.M., San Román, E., et al. "Phthalocyanines bound to insoluble polystyrene. Synthesis and properties as energy-transfer photosensitizers" . Journal of Photochemistry and Photobiology A: Chemistry, vol. 108, no. 2-3, 1997, pp. 273-282.
http://dx.doi.org/10.1016/S1010-6030(97)00096-8
---------- VANCOUVER ----------
Bourdelande, J.L., Karzazi, M., Dicelio, L.E., Litter, M.I., Tura, G.M., San Román, E., et al. Phthalocyanines bound to insoluble polystyrene. Synthesis and properties as energy-transfer photosensitizers. J. Photochem. Photobiol. A Chem. 1997;108(2-3):273-282.
http://dx.doi.org/10.1016/S1010-6030(97)00096-8