Supramolecular Complex of a Fused Zinc Phthalocyanine-Zinc Porphyrin Dyad Assembled by Two Imidazole-C60 Units: Ultrafast Energy Transfer Followed by Electron Transfer

A new zinc phthalocyanine-zinc porphyrin dyad (ZnPc-ZnP) fused through a pyrazine ring has been synthesized as a receptor for imidazole-substituted C60 (C60Im) electron acceptor. Self-assembly via metal-ligand axial coordination and the pertinent association constants in solution were determined by...

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Autores: Follana Berná, Jorge, Seetharaman, Sairaman, Martín Gomis, Luis, Charalambidis, Georgios, Trapali, Adelais, Karr, Paul A., Coutsolelos, Athanassios G., Fernández-Lázaro, Fernando, D’Souza, Francis, Sastre-Santos, Ángela
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universidad Miguel Hernández de Elche
Repositorio:REDIUMH. Depósito Digital de la UMH
OAI Identifier:oai:dspace.umh.es:11000/5037
Acceso en línea:http://hdl.handle.net/11000/5037
Access Level:acceso abierto
Palabra clave:615 - Farmacología. Terapéutica. Toxicología. Radiología
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spelling Supramolecular Complex of a Fused Zinc Phthalocyanine-Zinc Porphyrin Dyad Assembled by Two Imidazole-C60 Units: Ultrafast Energy Transfer Followed by Electron TransferFollana Berná, JorgeSeetharaman, SairamanMartín Gomis, LuisCharalambidis, GeorgiosTrapali, AdelaisKarr, Paul A.Coutsolelos, Athanassios G.Fernández-Lázaro, FernandoD’Souza, FrancisSastre-Santos, Ángela615 - Farmacología. Terapéutica. Toxicología. RadiologíaA new zinc phthalocyanine-zinc porphyrin dyad (ZnPc-ZnP) fused through a pyrazine ring has been synthesized as a receptor for imidazole-substituted C60 (C60Im) electron acceptor. Self-assembly via metal-ligand axial coordination and the pertinent association constants in solution were determined by 1H-NMR, UV-Vis and fluorescence titration experiments at room temperature. The designed host was able to bind up to two C60Im electron acceptor guest molecules to yield C60Im:ZnPc-ZnP:ImC60 donor-acceptor supramolecular complex. The spectral data showed that the two binding sites behave independently with binding constants similar in magnitude. Steady-state fluorescence studies were indicative of an efficient singlet-singlet energy transfer from zinc porphyrin to zinc phthalocyanine within the fused dyad. Accordingly, the transient absorption studies covering a wide timescale of femto-to-milli seconds revealed ultrafast energy transfer from 1ZnP* to ZnPc (kEnT ~ 1012 s-1) in the fused dyad. Further, a photo induced electron transfer was observed in the supramolecularly assembled C60Im:ZnPc-ZnP:ImC60 donor-acceptor complex leading to charge separated states, which persisted for about 200ns.Support from the Ministerio de Economia Industria y Competitividad of Spain (CTQ2014-55798-R and CTQ2017- 87102-R)The Special Research Account of the University of Crete,US-National Science Foundation (grant no. 1401188 to FD)Departamentos de la UMH::Farmacología, Pediatría y Química Orgánica2019201920182019info:eu-repo/semantics/articleapplication/pdf13application/pdfhttp://hdl.handle.net/11000/5037reponame:REDIUMH. Depósito Digital de la UMHinstname:Universidad Miguel Hernández de ElcheIngléshttps://doi.org/10.1039 / C8CP00382Cinfo:eu-repo/semantics/openAccessoai:dspace.umh.es:11000/50372026-05-27T13:36:21Z
dc.title.none.fl_str_mv Supramolecular Complex of a Fused Zinc Phthalocyanine-Zinc Porphyrin Dyad Assembled by Two Imidazole-C60 Units: Ultrafast Energy Transfer Followed by Electron Transfer
title Supramolecular Complex of a Fused Zinc Phthalocyanine-Zinc Porphyrin Dyad Assembled by Two Imidazole-C60 Units: Ultrafast Energy Transfer Followed by Electron Transfer
spellingShingle Supramolecular Complex of a Fused Zinc Phthalocyanine-Zinc Porphyrin Dyad Assembled by Two Imidazole-C60 Units: Ultrafast Energy Transfer Followed by Electron Transfer
Follana Berná, Jorge
615 - Farmacología. Terapéutica. Toxicología. Radiología
title_short Supramolecular Complex of a Fused Zinc Phthalocyanine-Zinc Porphyrin Dyad Assembled by Two Imidazole-C60 Units: Ultrafast Energy Transfer Followed by Electron Transfer
title_full Supramolecular Complex of a Fused Zinc Phthalocyanine-Zinc Porphyrin Dyad Assembled by Two Imidazole-C60 Units: Ultrafast Energy Transfer Followed by Electron Transfer
title_fullStr Supramolecular Complex of a Fused Zinc Phthalocyanine-Zinc Porphyrin Dyad Assembled by Two Imidazole-C60 Units: Ultrafast Energy Transfer Followed by Electron Transfer
title_full_unstemmed Supramolecular Complex of a Fused Zinc Phthalocyanine-Zinc Porphyrin Dyad Assembled by Two Imidazole-C60 Units: Ultrafast Energy Transfer Followed by Electron Transfer
title_sort Supramolecular Complex of a Fused Zinc Phthalocyanine-Zinc Porphyrin Dyad Assembled by Two Imidazole-C60 Units: Ultrafast Energy Transfer Followed by Electron Transfer
dc.creator.none.fl_str_mv Follana Berná, Jorge
Seetharaman, Sairaman
Martín Gomis, Luis
Charalambidis, Georgios
Trapali, Adelais
Karr, Paul A.
Coutsolelos, Athanassios G.
Fernández-Lázaro, Fernando
D’Souza, Francis
Sastre-Santos, Ángela
author Follana Berná, Jorge
author_facet Follana Berná, Jorge
Seetharaman, Sairaman
Martín Gomis, Luis
Charalambidis, Georgios
Trapali, Adelais
Karr, Paul A.
Coutsolelos, Athanassios G.
Fernández-Lázaro, Fernando
D’Souza, Francis
Sastre-Santos, Ángela
author_role author
author2 Seetharaman, Sairaman
Martín Gomis, Luis
Charalambidis, Georgios
Trapali, Adelais
Karr, Paul A.
Coutsolelos, Athanassios G.
Fernández-Lázaro, Fernando
D’Souza, Francis
Sastre-Santos, Ángela
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Departamentos de la UMH::Farmacología, Pediatría y Química Orgánica
dc.subject.none.fl_str_mv 615 - Farmacología. Terapéutica. Toxicología. Radiología
topic 615 - Farmacología. Terapéutica. Toxicología. Radiología
description A new zinc phthalocyanine-zinc porphyrin dyad (ZnPc-ZnP) fused through a pyrazine ring has been synthesized as a receptor for imidazole-substituted C60 (C60Im) electron acceptor. Self-assembly via metal-ligand axial coordination and the pertinent association constants in solution were determined by 1H-NMR, UV-Vis and fluorescence titration experiments at room temperature. The designed host was able to bind up to two C60Im electron acceptor guest molecules to yield C60Im:ZnPc-ZnP:ImC60 donor-acceptor supramolecular complex. The spectral data showed that the two binding sites behave independently with binding constants similar in magnitude. Steady-state fluorescence studies were indicative of an efficient singlet-singlet energy transfer from zinc porphyrin to zinc phthalocyanine within the fused dyad. Accordingly, the transient absorption studies covering a wide timescale of femto-to-milli seconds revealed ultrafast energy transfer from 1ZnP* to ZnPc (kEnT ~ 1012 s-1) in the fused dyad. Further, a photo induced electron transfer was observed in the supramolecularly assembled C60Im:ZnPc-ZnP:ImC60 donor-acceptor complex leading to charge separated states, which persisted for about 200ns.
publishDate 2018
dc.date.none.fl_str_mv 2018
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/11000/5037
url http://hdl.handle.net/11000/5037
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1039 / C8CP00382C
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
13
application/pdf
dc.source.none.fl_str_mv reponame:REDIUMH. Depósito Digital de la UMH
instname:Universidad Miguel Hernández de Elche
instname_str Universidad Miguel Hernández de Elche
reponame_str REDIUMH. Depósito Digital de la UMH
collection REDIUMH. Depósito Digital de la UMH
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301629

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