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dc.contributor.authorHenwood, Adam Francis
dc.contributor.authorEvariste, Sloane
dc.contributor.authorSlawin, Alexandra Martha Zoya
dc.contributor.authorZysman-Colman, Eli
dc.date.accessioned2015-06-11T23:10:58Z
dc.date.available2015-06-11T23:10:58Z
dc.date.issued2014-12-01
dc.identifier160125069
dc.identifiera6486631-c674-441d-8d79-fba6e5d93b90
dc.identifier000348331600010
dc.identifier84982732975
dc.identifier.citationHenwood , A F , Evariste , S , Slawin , A M Z & Zysman-Colman , E 2014 , ' Rigid biimidazole ancillary ligands as an avenue to bright deep blue cationic iridium(III) complexes ' , Faraday Discussions , vol. 174 , pp. 165-182 . https://doi.org/10.1039/C4FD00107Aen
dc.identifier.issn1359-6640
dc.identifier.otherORCID: /0000-0001-7183-6022/work/56639119
dc.identifier.otherORCID: /0000-0002-9527-6418/work/56861932
dc.identifier.urihttps://hdl.handle.net/10023/6809
dc.descriptionEZ-C acknowledges the University of St Andrews for financial support. Date of Acceptance: 03/06/2014en
dc.description.abstractHerein we report the synthesis and optoelectronic characterisation of three deep blue-emitting cationic iridium complexes, of the form [Ir(dFppy)2(N^N)]PF6, bearing biimidazole-type N^N ancillary ligands (dFppyH = 2-(2,4-difluorophenyl)pyridine). Complex 1 contains the parent biimidazole, biim, while 2 contains a dimethylated analog, dMebiim, and 3 contains an ortho-xylyl-tethered biimidzole, o-xylbiim. We explore a strategy of tethering the biimidazole in order to rigidify the complex and increase the photoluminescent quantum yield, culminating in deep blue (λmax: 457 nm in MeOH at 298 K) ligand-centered emission with a very high photoluminescent quantum yield of 68% and microsecond emission lifetime. Density functional theory calculations elucidate the origin of such disparate excited state kinetics across this series, especially in light of virtually identical optoelectronic properties observed for these compounds.
dc.format.extent18
dc.format.extent1947716
dc.language.isoeng
dc.relation.ispartofFaraday Discussionsen
dc.subjectQD Chemistryen
dc.subject.lccQDen
dc.titleRigid biimidazole ancillary ligands as an avenue to bright deep blue cationic iridium(III) complexesen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. EaSTCHEMen
dc.identifier.doihttps://doi.org/10.1039/C4FD00107A
dc.description.statusPeer revieweden
dc.date.embargoedUntil2015-06-12
dc.identifier.urlhttp://www.rsc.org/suppdata/fd/c4/c4fd00107a/c4fd00107a1.pdfen
dc.identifier.urlhttp://www.rsc.org/suppdata/fd/c4/c4fd00107a/c4fd00107a2.cifen


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