Distance Matters: Effect of the Spacer Length on the Photophysical Properties of Multimodular Perylenediimide–Silicon Phthalocyanine–Fullerene Triads

A multimodular donor–acceptor conjugate featuring silicon phthalocyanine (SiPc) as the electron donor, and two electron acceptors, namely tetrachloroperylenediimide (PDI) and C60, placed at the opposite ends of the SiPc axial positions, was newly designed and synthesized, and the results were compar...

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Autores: Martín-Gomis, Luis, Díaz-Puertas, Rocío, Seetharaman, Sairaman, Karr, Paul A., Fernández-Lázaro, Fernando, Sastre-Santos, Ángela
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad Miguel Hernández de Elche
Repositorio:REDIUMH. Depósito Digital de la UMH
OAI Identifier:oai:dspace.umh.es:11000/37912
Acceso en línea:https://hdl.handle.net/11000/37912
Access Level:acceso abierto
Palabra clave:CDU::6 - Ciencias aplicadas::61 - Medicina::615 - Farmacología. Terapéutica. Toxicología. Radiología
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spelling Distance Matters: Effect of the Spacer Length on the Photophysical Properties of Multimodular Perylenediimide–Silicon Phthalocyanine–Fullerene TriadsMartín-Gomis, LuisDíaz-Puertas, RocíoSeetharaman, SairamanKarr, Paul A.Fernández-Lázaro, FernandoSastre-Santos, ÁngelaCDU::6 - Ciencias aplicadas::61 - Medicina::615 - Farmacología. Terapéutica. Toxicología. RadiologíaA multimodular donor–acceptor conjugate featuring silicon phthalocyanine (SiPc) as the electron donor, and two electron acceptors, namely tetrachloroperylenediimide (PDI) and C60, placed at the opposite ends of the SiPc axial positions, was newly designed and synthesized, and the results were compared to the earlier reported PDI-SiPc-C60 triad. Minimal intramolecular interactions between the entities was observed. Absorption, fluorescence, computational and electrochemical studies were performed to evaluate the excitation energy, geometry and electronic structure, and energy levels of different photoevents. Steady-state absorption, fluorescence and excitation spectral studies revealed efficient singlet–singlet energy transfer from 1PDI* to SiPc in the PDI-SiPc dyad and the PDI-SiPc-C60 triad. The measured rates for these photochemical events were found to be much higher than those reported earlier for the triad, due to closer proximity between the PDI and SiPc entities. The distance also affected the charge separation path in which involvement of PDI, and not C60, in charge separation in the present triad was witnessed. The present investigation brings out the importance of donor–acceptor distances in channeling photochemical events in a multimodular systemWiley202520252020info:eu-repo/semantics/articleapplication/pdf11application/pdfhttps://hdl.handle.net/11000/37912reponame:REDIUMH. Depósito Digital de la UMHinstname:Universidad Miguel Hernández de ElcheIngléshttps://doi.org/10.1002/chem.201905605info:eu-repo/semantics/openAccessAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/oai:dspace.umh.es:11000/379122026-05-27T13:36:21Z
dc.title.none.fl_str_mv Distance Matters: Effect of the Spacer Length on the Photophysical Properties of Multimodular Perylenediimide–Silicon Phthalocyanine–Fullerene Triads
title Distance Matters: Effect of the Spacer Length on the Photophysical Properties of Multimodular Perylenediimide–Silicon Phthalocyanine–Fullerene Triads
spellingShingle Distance Matters: Effect of the Spacer Length on the Photophysical Properties of Multimodular Perylenediimide–Silicon Phthalocyanine–Fullerene Triads
Martín-Gomis, Luis
CDU::6 - Ciencias aplicadas::61 - Medicina::615 - Farmacología. Terapéutica. Toxicología. Radiología
title_short Distance Matters: Effect of the Spacer Length on the Photophysical Properties of Multimodular Perylenediimide–Silicon Phthalocyanine–Fullerene Triads
title_full Distance Matters: Effect of the Spacer Length on the Photophysical Properties of Multimodular Perylenediimide–Silicon Phthalocyanine–Fullerene Triads
title_fullStr Distance Matters: Effect of the Spacer Length on the Photophysical Properties of Multimodular Perylenediimide–Silicon Phthalocyanine–Fullerene Triads
title_full_unstemmed Distance Matters: Effect of the Spacer Length on the Photophysical Properties of Multimodular Perylenediimide–Silicon Phthalocyanine–Fullerene Triads
title_sort Distance Matters: Effect of the Spacer Length on the Photophysical Properties of Multimodular Perylenediimide–Silicon Phthalocyanine–Fullerene Triads
dc.creator.none.fl_str_mv Martín-Gomis, Luis
Díaz-Puertas, Rocío
Seetharaman, Sairaman
Karr, Paul A.
Fernández-Lázaro, Fernando
Sastre-Santos, Ángela
author Martín-Gomis, Luis
author_facet Martín-Gomis, Luis
Díaz-Puertas, Rocío
Seetharaman, Sairaman
Karr, Paul A.
Fernández-Lázaro, Fernando
Sastre-Santos, Ángela
author_role author
author2 Díaz-Puertas, Rocío
Seetharaman, Sairaman
Karr, Paul A.
Fernández-Lázaro, Fernando
Sastre-Santos, Ángela
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv CDU::6 - Ciencias aplicadas::61 - Medicina::615 - Farmacología. Terapéutica. Toxicología. Radiología
topic CDU::6 - Ciencias aplicadas::61 - Medicina::615 - Farmacología. Terapéutica. Toxicología. Radiología
description A multimodular donor–acceptor conjugate featuring silicon phthalocyanine (SiPc) as the electron donor, and two electron acceptors, namely tetrachloroperylenediimide (PDI) and C60, placed at the opposite ends of the SiPc axial positions, was newly designed and synthesized, and the results were compared to the earlier reported PDI-SiPc-C60 triad. Minimal intramolecular interactions between the entities was observed. Absorption, fluorescence, computational and electrochemical studies were performed to evaluate the excitation energy, geometry and electronic structure, and energy levels of different photoevents. Steady-state absorption, fluorescence and excitation spectral studies revealed efficient singlet–singlet energy transfer from 1PDI* to SiPc in the PDI-SiPc dyad and the PDI-SiPc-C60 triad. The measured rates for these photochemical events were found to be much higher than those reported earlier for the triad, due to closer proximity between the PDI and SiPc entities. The distance also affected the charge separation path in which involvement of PDI, and not C60, in charge separation in the present triad was witnessed. The present investigation brings out the importance of donor–acceptor distances in channeling photochemical events in a multimodular system
publishDate 2020
dc.date.none.fl_str_mv 2020
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/11000/37912
url https://hdl.handle.net/11000/37912
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1002/chem.201905605
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.format.none.fl_str_mv application/pdf
11
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
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 15,812429

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