Publication:
Luminescent platinum (II) Complexes with Terdentate N∧C∧C Ligands

dc.contributor.authorPoveda Otazo, Dionisio
dc.contributor.authorVivancos Ureña, Ángela
dc.contributor.authorBautista, Delia
dc.contributor.authorGonzález Herrero, Pablo
dc.contributor.departmentQuímica Inorgánica
dc.date.accessioned2024-01-30T12:55:49Z
dc.date.available2024-01-30T12:55:49Z
dc.date.copyright© 2023 The Authors.
dc.date.issued2023-12-05
dc.description.abstractThe synthesis, structure, and luminescence of Pt(II) complexes of the type [Pt(N∧C∧C)(L)] are reported, where N∧C∧C is a terdentate ligand resulting from the cycloplatination of 2-(3,5-diphenoxyphenyl)pyridine or 2-(4,4″-dimethyl-[1,1′:3′,1″-terphenyl]-5′-yl)pyridine, and L represents a monodentate ancillary ligand, which can be γ-picoline, 4-pyridinecarboxaldehyde, PPh3, n-butyl or 2,6-dimethylphenyl isocyanide, CO, or the N-heterocyclic carbenes 1-butyl-3-methylimidazol-2-ylidene or 4-butyl-3-methyl-1-phenyl-1H-1,2,3-triazol-5-ylidene. Derivatives bearing CO, isocyanides, or carbenes showed the highest stabilities in solution, whereas the pyridine and PPh3 derivatives establish ligand-exchange equilibria in acetonitrile. Different supramolecular structures are observed in the solid state, which largely depend on the nature of the ancillary ligand. Isocyanides and CO favor π interactions between the aromatic rings, metallophilic Pt···Pt contacts, or a combination of both. In contrast, pyridine ligands may lead to bimolecular assemblies driven by C–H···O, C–H···Pt, or C–H/π hydrogen bonds. Luminescence was examined in fluid solution, poly(methyl methacrylate) matrices, and the solid state at 298 K, and in 2-methyltetrahydrofuran glasses at 77 K. The majority of derivatives show highly efficient emissions from 3ILCT/MLCT or 3ILCT/MLCT/LLCT excited states of monomeric species. The formation of excimers and different types of emissive aggregates are demonstrated, which lead to red-shifted emissions of different origins and characteristics depending on the
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dc.identifier.citationInorganic Chemistry. 2023, 62, 20987−21002
dc.identifier.doihttps://doi.org/10.1021/acs.inorgchem.3c02399
dc.identifier.urihttp://hdl.handle.net/10201/138169
dc.languageenges
dc.relationMCIN/AEI/10.13039/501100011033 and “ERDF A way of making Europe”, proyecto PID2021-122966NB-I00. MCIN/AEI/10.13039/501100011033 and “ESF Investing in your future”, proyecto IJC2019-039057-I. Fundación Séneca-Agencia de Ciencia y Tecnología de la Región de Murcia, proyecto 22074/JLI/22. Fundación Séneca-Agencia de Ciencia y Tecnología de la Región de Murcia, beca predoctoral 20725/FPI/18.es
dc.rightsinfo:eu-repo/semantics/openAccesses
dc.rightsAtribución 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectPlatinoes
dc.subjectLuminiscencia
dc.subject.otherCDU::5 - Ciencias puras y naturaleses
dc.titleLuminescent platinum (II) Complexes with Terdentate N∧C∧C Ligandses
dc.typeinfo:eu-repo/semantics/articlees
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublicationes
relation.isAuthorOfPublication65442601-51e1-4097-9b9a-fdcb97a1f245
relation.isAuthorOfPublicationf742f498-a90d-4c6e-a85d-23e3f2a78d4c
relation.isAuthorOfPublication940323e4-526b-4ee9-b4f9-728b2b9a5da7
relation.isAuthorOfPublication.latestForDiscovery65442601-51e1-4097-9b9a-fdcb97a1f245
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