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dc.contributor.authorFilby, M.
dc.contributor.authorDickson, S.
dc.contributor.authorZaccheroni, N.
dc.contributor.authorProdi, L.
dc.contributor.authorBonacchi, S.
dc.contributor.authorMontalti, M.
dc.contributor.authorPaterson, M.
dc.contributor.authorHumphries, Terry
dc.contributor.authorChiorboli, C.
dc.contributor.authorSteed, J.
dc.identifier.citationFilby, M. and Dickson, S. and Zaccheroni, N. and Prodi, L. and Bonacchi, S. and Montalti, M. and Paterson, M. et al. 2008. Induced fit interanion discrimination by binding-induced excimer formation. Journal of the American Chemical Society. 130 (12): pp. 4105-4113.

The synthesis, photophysical, and anion-binding properties of a series of di-, tri-, and tetrapodal anion-binding hosts based on aminopyridinium units with pyrenyl reporter groups are described. The ditopic mesitylene-derived calix[4]arene-based host 4 binds strongly to dicarboxylates, particularly malonate, in a 2:1 anion:host ratio but is essentially nonemissive in the presence of all anions except chloride because of intramolecular quenching by the pyridinium units. Addition of chloride results in a conformational change, giving an initial increase in emission assigned to intramolecular excimer formation. Further chloride addition also results in an increase in the intensity of the pyrenyl monomer emission as chloride binding reduces the acceptor ability of the pyridinium groups. This behavior is not exhibited by control compounds 5 and 6, which lack the ditopic geometry and calixarene spacer unit; however, tripodal 6 forms 1:2 anion:host complexes with a range of anions. © 2008 American Chemical Society.

dc.publisherAmerican Chemical Society
dc.titleInduced fit interanion discrimination by binding-induced excimer formation
dc.typeJournal Article
dcterms.source.titleJournal of the American Chemical Society
curtin.departmentDepartment of Physics and Astronomy
curtin.accessStatusFulltext not available

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