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Multinuclear Pt(II) Complexes: Why Three is Better Than Two to Enhance Photophysical Properties
The self‐assembly of platinum complexes is a well‐documented process that leads to interesting changes of the photophysical and electrochemical behavior as well as to a change in reactivity of the complexes. However, it is still not clear how many metal units must interact in order to achieve the de...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7496982/ https://www.ncbi.nlm.nih.gov/pubmed/32329122 http://dx.doi.org/10.1002/chem.202001510 |
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author | Chakraborty, Sourav Aliprandi, Alessandro De Cola, Luisa |
author_facet | Chakraborty, Sourav Aliprandi, Alessandro De Cola, Luisa |
author_sort | Chakraborty, Sourav |
collection | PubMed |
description | The self‐assembly of platinum complexes is a well‐documented process that leads to interesting changes of the photophysical and electrochemical behavior as well as to a change in reactivity of the complexes. However, it is still not clear how many metal units must interact in order to achieve the desired properties of a large assembly. This work aimed to clarify the role of the number of interacting Pt(II) units leading to an enhancement of the spectroscopic properties and how to address inter‐ versus intramolecular processes. Therefore, a series of neutral multinuclear Pt(II) complexes were synthesized and characterized, and their photophysical properties at different concentration were studied. Going from the monomer to dimers, the growth of a new emission band and the enhancement of the emission properties were observed. Upon increasing the platinum units up to three, the monomeric blue emission could not be detected anymore and a concentration independent bright‐yellow/orange emission, due to the establishment of intramolecular metallophilic interactions, was observed. |
format | Online Article Text |
id | pubmed-7496982 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-74969822020-09-25 Multinuclear Pt(II) Complexes: Why Three is Better Than Two to Enhance Photophysical Properties Chakraborty, Sourav Aliprandi, Alessandro De Cola, Luisa Chemistry Full Papers The self‐assembly of platinum complexes is a well‐documented process that leads to interesting changes of the photophysical and electrochemical behavior as well as to a change in reactivity of the complexes. However, it is still not clear how many metal units must interact in order to achieve the desired properties of a large assembly. This work aimed to clarify the role of the number of interacting Pt(II) units leading to an enhancement of the spectroscopic properties and how to address inter‐ versus intramolecular processes. Therefore, a series of neutral multinuclear Pt(II) complexes were synthesized and characterized, and their photophysical properties at different concentration were studied. Going from the monomer to dimers, the growth of a new emission band and the enhancement of the emission properties were observed. Upon increasing the platinum units up to three, the monomeric blue emission could not be detected anymore and a concentration independent bright‐yellow/orange emission, due to the establishment of intramolecular metallophilic interactions, was observed. John Wiley and Sons Inc. 2020-07-01 2020-08-26 /pmc/articles/PMC7496982/ /pubmed/32329122 http://dx.doi.org/10.1002/chem.202001510 Text en © 2020 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. |
spellingShingle | Full Papers Chakraborty, Sourav Aliprandi, Alessandro De Cola, Luisa Multinuclear Pt(II) Complexes: Why Three is Better Than Two to Enhance Photophysical Properties |
title | Multinuclear Pt(II) Complexes: Why Three is Better Than Two to Enhance Photophysical Properties |
title_full | Multinuclear Pt(II) Complexes: Why Three is Better Than Two to Enhance Photophysical Properties |
title_fullStr | Multinuclear Pt(II) Complexes: Why Three is Better Than Two to Enhance Photophysical Properties |
title_full_unstemmed | Multinuclear Pt(II) Complexes: Why Three is Better Than Two to Enhance Photophysical Properties |
title_short | Multinuclear Pt(II) Complexes: Why Three is Better Than Two to Enhance Photophysical Properties |
title_sort | multinuclear pt(ii) complexes: why three is better than two to enhance photophysical properties |
topic | Full Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7496982/ https://www.ncbi.nlm.nih.gov/pubmed/32329122 http://dx.doi.org/10.1002/chem.202001510 |
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