Carboxylated zinc phthalocyanines III. Quenching of excited singlet and triplet states by quinones in CTAC micelles

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Deactivation of zinc dicarboxydiamide phthalocyanine (ZnPc) by quinones was investigated in hexadecyltrimethylammonium chloride micelles by fluorescence and triplet quenching experiments. Fluorescence data were handled according to the method of Encinas and Lissi (Chem. Phys. Lett., 91 (1982) 55) to...

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Autores principales: Daraio, M.E., Aramendia, P.F., San Román, E.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_10106030_v77_n1_p41_Daraio
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_10106030_v77_n1_p41_Daraio
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spelling todo:paper_10106030_v77_n1_p41_Daraio2023-10-03T15:56:03Z Carboxylated zinc phthalocyanines III. Quenching of excited singlet and triplet states by quinones in CTAC micelles Daraio, M.E. Aramendia, P.F. San Román, E. Deactivation of zinc dicarboxydiamide phthalocyanine (ZnPc) by quinones was investigated in hexadecyltrimethylammonium chloride micelles by fluorescence and triplet quenching experiments. Fluorescence data were handled according to the method of Encinas and Lissi (Chem. Phys. Lett., 91 (1982) 55) to derive quencher partition constants. The same data were used to obtain singlet quenching constants. Triplet quenching and quencher exit rate constants were obtained by steady state singlet oxygen phosphorescence detection. The correlation of the quenching rate constants with the redox potentials indicates electron transfer quenching. © 1994. Fil:Daraio, M.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Aramendia, P.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:San Román, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10106030_v77_n1_p41_Daraio
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description Deactivation of zinc dicarboxydiamide phthalocyanine (ZnPc) by quinones was investigated in hexadecyltrimethylammonium chloride micelles by fluorescence and triplet quenching experiments. Fluorescence data were handled according to the method of Encinas and Lissi (Chem. Phys. Lett., 91 (1982) 55) to derive quencher partition constants. The same data were used to obtain singlet quenching constants. Triplet quenching and quencher exit rate constants were obtained by steady state singlet oxygen phosphorescence detection. The correlation of the quenching rate constants with the redox potentials indicates electron transfer quenching. © 1994.
format JOUR
author Daraio, M.E.
Aramendia, P.F.
San Román, E.
spellingShingle Daraio, M.E.
Aramendia, P.F.
San Román, E.
Carboxylated zinc phthalocyanines III. Quenching of excited singlet and triplet states by quinones in CTAC micelles
author_facet Daraio, M.E.
Aramendia, P.F.
San Román, E.
author_sort Daraio, M.E.
title Carboxylated zinc phthalocyanines III. Quenching of excited singlet and triplet states by quinones in CTAC micelles
title_short Carboxylated zinc phthalocyanines III. Quenching of excited singlet and triplet states by quinones in CTAC micelles
title_full Carboxylated zinc phthalocyanines III. Quenching of excited singlet and triplet states by quinones in CTAC micelles
title_fullStr Carboxylated zinc phthalocyanines III. Quenching of excited singlet and triplet states by quinones in CTAC micelles
title_full_unstemmed Carboxylated zinc phthalocyanines III. Quenching of excited singlet and triplet states by quinones in CTAC micelles
title_sort carboxylated zinc phthalocyanines iii. quenching of excited singlet and triplet states by quinones in ctac micelles
url http://hdl.handle.net/20.500.12110/paper_10106030_v77_n1_p41_Daraio
work_keys_str_mv AT daraiome carboxylatedzincphthalocyaninesiiiquenchingofexcitedsingletandtripletstatesbyquinonesinctacmicelles
AT aramendiapf carboxylatedzincphthalocyaninesiiiquenchingofexcitedsingletandtripletstatesbyquinonesinctacmicelles
AT sanromane carboxylatedzincphthalocyaninesiiiquenchingofexcitedsingletandtripletstatesbyquinonesinctacmicelles
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