Room-Temperature Phosphorescence and Efficient Singlet Oxygen Production by Cyclometalated Pt(II) Complexes with Aromatic Alkynyl Ligands

The synthesis of five novel cyclometalated platinum(II) compounds containing five different alkynyl-chromophores was achieved by the reaction of the previously synthesized Pt-Cl cyclometalated compound (1) with the corresponding RC (math)CH by a Sonogashira reaction. It was observed that the spectra...

Descripción completa

Detalles Bibliográficos
Autores: Lázaro, Ariadna, Cunha, Carla, Bosque Pueyo, Ramón, Pina, João, Ward, Jas S., Truong, Khai-Nghi, Rissanen, Kari, Lima, João Carlos, Crespo Vicente, Margarita Ma., Seixas de Melo, J. Sérgio, Rodríguez Raurell, Laura
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2020
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/185067
Acceso en línea:https://hdl.handle.net/2445/185067
Access Level:acceso abierto
Palabra clave:Fosforescència
Lligands
Oxigen
Phosphorescence
Ligands
Oxygen
id ES_b8784cfcb88d0a4f643ad5f769bcf84d
oai_identifier_str oai:recercat.cat:2445/185067
network_acronym_str ES
network_name_str España
repository_id_str
spelling Room-Temperature Phosphorescence and Efficient Singlet Oxygen Production by Cyclometalated Pt(II) Complexes with Aromatic Alkynyl LigandsLázaro, AriadnaCunha, CarlaBosque Pueyo, RamónPina, JoãoWard, Jas S.Truong, Khai-NghiRissanen, KariLima, João CarlosCrespo Vicente, Margarita Ma.Seixas de Melo, J. SérgioRodríguez Raurell, LauraFosforescènciaLligandsOxigenPhosphorescenceLigandsOxygenThe synthesis of five novel cyclometalated platinum(II) compounds containing five different alkynyl-chromophores was achieved by the reaction of the previously synthesized Pt-Cl cyclometalated compound (1) with the corresponding RC (math)CH by a Sonogashira reaction. It was observed that the spectral and photophysical characteristics of the cyclometalated platinum(II) complexes (Pt-Ar) are essentially associated with the platinum-cyclometalated unit. Room-temperature emission of the Pt-Ar complexes was attributed to phosphorescence in agreement with DFT calculations. Broad nanosecond (ns)-transient absorption spectra were observed with decays approximately identical to those obtained from the emission of the triplet state. From the femtosecond-transient absorption (fs-TA) data, two main excited- state decay components were identified: one in the order of a few picoseconds was assigned to fast intersystem crossing to populate the triplet excited-state and the second (hundreds of ns) was associated with the decay of the transient triplet state. In general, efficient singlet oxygen photosensitization quantum yields were observed from the triplet state of these complexes.American Chemical Society2022202220202022info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion11 p.application/pdfhttps://hdl.handle.net/2445/185067Articles publicats en revistes (Química Inorgànica i Orgànica)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésVersió postprint del document publicat a: https://doi.org/10.1021/acs.inorgchem.0c00577Inorganic Chemistry, 2020, vol. 59, num. 12, p. 8220-8230https://doi.org/10.1021/acs.inorgchem.0c00577(c) American Chemical Society , 2020info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1850672026-05-29T05:05:01Z
dc.title.none.fl_str_mv Room-Temperature Phosphorescence and Efficient Singlet Oxygen Production by Cyclometalated Pt(II) Complexes with Aromatic Alkynyl Ligands
title Room-Temperature Phosphorescence and Efficient Singlet Oxygen Production by Cyclometalated Pt(II) Complexes with Aromatic Alkynyl Ligands
spellingShingle Room-Temperature Phosphorescence and Efficient Singlet Oxygen Production by Cyclometalated Pt(II) Complexes with Aromatic Alkynyl Ligands
Lázaro, Ariadna
Fosforescència
Lligands
Oxigen
Phosphorescence
Ligands
Oxygen
title_short Room-Temperature Phosphorescence and Efficient Singlet Oxygen Production by Cyclometalated Pt(II) Complexes with Aromatic Alkynyl Ligands
title_full Room-Temperature Phosphorescence and Efficient Singlet Oxygen Production by Cyclometalated Pt(II) Complexes with Aromatic Alkynyl Ligands
title_fullStr Room-Temperature Phosphorescence and Efficient Singlet Oxygen Production by Cyclometalated Pt(II) Complexes with Aromatic Alkynyl Ligands
title_full_unstemmed Room-Temperature Phosphorescence and Efficient Singlet Oxygen Production by Cyclometalated Pt(II) Complexes with Aromatic Alkynyl Ligands
title_sort Room-Temperature Phosphorescence and Efficient Singlet Oxygen Production by Cyclometalated Pt(II) Complexes with Aromatic Alkynyl Ligands
dc.creator.none.fl_str_mv Lázaro, Ariadna
Cunha, Carla
Bosque Pueyo, Ramón
Pina, João
Ward, Jas S.
Truong, Khai-Nghi
Rissanen, Kari
Lima, João Carlos
Crespo Vicente, Margarita Ma.
Seixas de Melo, J. Sérgio
Rodríguez Raurell, Laura
author Lázaro, Ariadna
author_facet Lázaro, Ariadna
Cunha, Carla
Bosque Pueyo, Ramón
Pina, João
Ward, Jas S.
Truong, Khai-Nghi
Rissanen, Kari
Lima, João Carlos
Crespo Vicente, Margarita Ma.
Seixas de Melo, J. Sérgio
Rodríguez Raurell, Laura
author_role author
author2 Cunha, Carla
Bosque Pueyo, Ramón
Pina, João
Ward, Jas S.
Truong, Khai-Nghi
Rissanen, Kari
Lima, João Carlos
Crespo Vicente, Margarita Ma.
Seixas de Melo, J. Sérgio
Rodríguez Raurell, Laura
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Fosforescència
Lligands
Oxigen
Phosphorescence
Ligands
Oxygen
topic Fosforescència
Lligands
Oxigen
Phosphorescence
Ligands
Oxygen
description The synthesis of five novel cyclometalated platinum(II) compounds containing five different alkynyl-chromophores was achieved by the reaction of the previously synthesized Pt-Cl cyclometalated compound (1) with the corresponding RC (math)CH by a Sonogashira reaction. It was observed that the spectral and photophysical characteristics of the cyclometalated platinum(II) complexes (Pt-Ar) are essentially associated with the platinum-cyclometalated unit. Room-temperature emission of the Pt-Ar complexes was attributed to phosphorescence in agreement with DFT calculations. Broad nanosecond (ns)-transient absorption spectra were observed with decays approximately identical to those obtained from the emission of the triplet state. From the femtosecond-transient absorption (fs-TA) data, two main excited- state decay components were identified: one in the order of a few picoseconds was assigned to fast intersystem crossing to populate the triplet excited-state and the second (hundreds of ns) was associated with the decay of the transient triplet state. In general, efficient singlet oxygen photosensitization quantum yields were observed from the triplet state of these complexes.
publishDate 2020
dc.date.none.fl_str_mv 2020
2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/185067
url https://hdl.handle.net/2445/185067
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1021/acs.inorgchem.0c00577
Inorganic Chemistry, 2020, vol. 59, num. 12, p. 8220-8230
https://doi.org/10.1021/acs.inorgchem.0c00577
dc.rights.none.fl_str_mv (c) American Chemical Society , 2020
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Chemical Society , 2020
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 11 p.
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Química Inorgànica i Orgànica)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869417652556922880
score 15,812429

Similares en LA Referencia