New 1,8-naphthyridine-based probes for the selective fluorescence signalling of toxic cadmium: synthesis, photophysical studies and molecular modelling

Mashraqui, S.H.; Betkar, R.; Chandiramani, M.; Poonia, K.; Quinonero, D.; Frontera, A.

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dc.contributor.author	Mashraqui, S.H.
dc.contributor.author	Betkar, R.
dc.contributor.author	Chandiramani, M.
dc.contributor.author	Poonia, K.
dc.contributor.author	Quinonero, D.
dc.contributor.author	Frontera, A.
dc.date.accessioned	2020-04-30T06:42:39Z
dc.identifier.uri	http://hdl.handle.net/11201/152193
dc.description.abstract	[eng] Newly synthesised 1,8-naphthyridine-based molecular probes, NAP-1 and NAP-2, exhibit highly selective fluorescence responses towards the toxic cadmium over coordinatively competing Zn2+ and several other metal ions examined. On the one hand, NAP-1 (MeOH:H2O, v/v 80:20, pH 7.4) exhibits ca. 1.5 order of magnitude higher stability constant for Cd2+ over Zn2+; on the other hand, NAP-2 in MeOH offers unique selectivity only towards Cd2+, exhibiting both absorbance and emission red shifts as well as fluorescence enhancement. By 1H NMR analysis, the tetra-coordinated binding is indicated at least for the NAP-1+Cd2+ complex and theoretical calculations reveal relatively stronger binding of Cd2+ over Zn2+.
dc.format	application/pdf
dc.relation.isformatof	https://doi.org/10.1080/10610278.2010.491153
dc.relation.ispartof	Supramolecular Chemistry, 2010, vol. 22, num. 9, p. 524-531
dc.rights	, 2010
dc.title	New 1,8-naphthyridine-based probes for the selective fluorescence signalling of toxic cadmium: synthesis, photophysical studies and molecular modelling
dc.type	info:eu-repo/semantics/article
dc.date.updated	2020-04-30T06:42:39Z
dc.date.embargoEndDate	info:eu-repo/date/embargoEnd/2026-12-31
dc.embargo	2026-12-31
dc.rights.accessRights	info:eu-repo/semantics/embargoedAccess
dc.identifier.doi	https://doi.org/10.1080/10610278.2010.491153