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dc.contributor.authorMiguel Coello, Ana Beatriz
dc.contributor.authorBardají Luna, Manuel 
dc.contributor.authorCoco Cea, Silverio 
dc.contributor.authorDonnio, Bertrand
dc.contributor.authorHeinrich, Benoît
dc.contributor.authorEspinet Rubio, Pablo 
dc.date.accessioned2018-12-12T13:47:10Z
dc.date.available2019-04-16T23:40:14Z
dc.date.issued2018
dc.identifier.citationInorganic Chemistry, 2018, 57 (8), pp 4359–4369es
dc.identifier.issn0020-1669es
dc.identifier.urihttp://uvadoc.uva.es/handle/10324/33435
dc.descriptionProducción Científicaes
dc.description.abstractTwo imidazolium salts containing one or two pentadodecyloxytriphenylene units linked through a hexyloxy chain and Br–, [AuBrmCl4–m]−, or [PtBrmCl4–m]2– (m = 0−3) as counterion have been prepared. Reaction of the imidazolium bromides with M2O (M = Cu, Ag), or carbene transmetalation from the silver product, leads to N-heterocyclic carbene complexes [MX(NHC)] (M = Cu, X = Br; M = Au, X = Cl, C≡CPh), [Ag(NHC)2][AgBr2], and [PtCl2(NHC)2], with NHC bearing one or two triphenylene fragments. Except for the gold derivatives and one Cu complex, the rest of them behave as liquid crystals organized in columnar mesophases (rectangular c2mm or p2mg or hexagonal p6mm symmetries) with melting points in the range 30 to 60 °C and clearing points in the range 57–112 °C. The mesophase structures were determined by small-angle X-ray scattering. Structural studies and models point to nanosegregation of triphenylene columns and imidazolium/metal carbene moieties, separated by alkoxy chains, leading to multicolumnar systems. The compounds display emission spectra related to the triphenylene core in solution, in the mesophase, in the isotropic liquid, and in the solid state.es
dc.format.mimetypeapplication/pdfes
dc.language.isoenges
dc.publisherAmerican Chemical Societyes
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleTriphenylene-Imidazolium Salts and Their NHC Metal Complexes, Materials with Segregated Multicolumnar Mesophaseses
dc.typeinfo:eu-repo/semantics/articlees
dc.identifier.doihttps://doi.org/10.1021/acs.inorgchem.7b03178es
dc.relation.publisherversionhttps://pubs.acs.org/doi/10.1021/acs.inorgchem.7b03178es
dc.peerreviewedSIes
dc.description.embargo2019-04-16es
dc.description.projectMinisterio de Ciencia e Innovación (Project CTQ2014-52796-P)es
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International


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