Efficient crystallization-induced emission in fluorenyl-tethered carboranes

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dc.contributor.authorWang, Zhaojin
dc.contributor.authorWang, Tianyu
dc.contributor.authorZhang, Chi
dc.contributor.authorHumphrey, Mark
dc.date.accessioned2021-06-11T02:01:29Z
dc.date.issued2017
dc.date.updated2020-11-23T10:28:25Z
dc.description.abstractFluorenyl-tethered o-carborane derivatives (Fl-Cb) as both mono- and di-aryl Cb assemblies were synthesized from the corresponding alkyne and B10H12(Et2S)2 in ca. 60% yields. Crystallographic studies of di-aryl examples show rigid head-to-tail or tail-to-tail packing, while for the mono-aryl examples, only loose packing was observed. In solution, the Fl-Cb compounds exhibit strong quenching of their emission, while aggregation in a mixed solvent results in an enhanced, but still weak, emission [0.11 quantum efficiency (F)]. Crystallization-induced emission was observed with the di-aryl examples [F up to 0.95]. The excitation spectra are broadened, consistent with considerable orbital degeneracy within the crystals. Theoretical calculations suggest that the inherent orbital degeneracy and the highly-ordered crystalline aggregates contribute to the excellent crystallization-induced emission in these Fl-Cb compounds.en_AU
dc.description.sponsorshipWe thank the National Natural Science Foundation of China (No. 21502072), the Natural Science Foundation of Jiangsu Province (No. BK20140140), the Chinese Government Ministry of Education and State Administration of Foreign Experts Affairs Program of Introducing Talents of Discipline to Universities (111 Project B13025), and the Australian Research Council for support.en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn1463-9076en_AU
dc.identifier.urihttp://hdl.handle.net/1885/237288
dc.language.isoen_AUen_AU
dc.provenancehttps://v2.sherpa.ac.uk/id/publication/18031..."The Accepted Version can be archived in a Non-Commercial Institutional Repository" from SHERPA/RoMEO site (as at 11/06/2021).
dc.publisherRoyal Society of Chemistryen_AU
dc.rights© the Owner Societies 2017en_AU
dc.sourcePhysical Chemistry Chemical Physicsen_AU
dc.titleEfficient crystallization-induced emission in fluorenyl-tethered carboranesen_AU
dc.typeJournal articleen_AU
dcterms.accessRightsOpen Access
local.bibliographicCitation.issue20en_AU
local.bibliographicCitation.lastpage12935en_AU
local.bibliographicCitation.startpage12928en_AU
local.contributor.affiliationWang, Zhaojin, Jiangnan Universityen_AU
local.contributor.affiliationWang, Tianyu, Jiangnan Universityen_AU
local.contributor.affiliationZhang, Chi, Jiangsu Universityen_AU
local.contributor.affiliationHumphrey, Mark, College of Science, ANUen_AU
local.contributor.authoruidHumphrey, Mark, u9400918en_AU
local.description.notesImported from ARIESen_AU
local.identifier.absfor030299 - Inorganic Chemistry not elsewhere classifieden_AU
local.identifier.absseo970103 - Expanding Knowledge in the Chemical Sciencesen_AU
local.identifier.ariespublicationu5247729xPUB42en_AU
local.identifier.citationvolume19en_AU
local.identifier.doi10.1039/c7cp02118fen_AU
local.identifier.scopusID2-s2.0-85024363795
local.identifier.thomsonID000402072100035
local.publisher.urlhttp://pubs.rsc.org/en/Journals/JournalIssues/CPen_AU
local.type.statusAccepted Versionen_AU

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