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A new class of silica-supported chromo-fluorogenic chemosensors for anion recognition based on a selenourea scaffold
Arianna Casula1, Antoni Llopis-Lorente2, Alessandra Garau1
1Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, 09042 Monserrato (CA), Italy. ccaltagirone@unica.it.
Abstract:
The first example of a chemosensor (L) containing a selenourea moiety is described here. L is able to colorimetrically sense the presence of CN- and S2- in H2O : MeCN (75 : 25, v/v). Moreover, when L is loaded into functionalised mesoporous silica nanoparticles an increase in the selectivity towards S2- occurs via a selective fluorescence response.
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