A new class of silica-supported chromo-fluorogenic chemosensors for anion recognition based on a selenourea scaffold

Arianna Casula; Antoni Llopis-Lorente; Alessandra Garau; Francesco Isaia; Maciej Kubicki; Vito Lippolis; Félix Sancenón; Ramón Martínez-Máñez; Agata Owczarzak; Claudio Santi; M. Andrea Scorciapino; Claudia Caltagirone

doi:10.1039/C7CC01214D

A new class of silica-supported chromo-fluorogenic chemosensors for anion recognition based on a selenourea scaffold†

Arianna Casula,^a Antoni Llopis-Lorente,^bcd Alessandra Garau,^a Francesco Isaia,^a Maciej Kubicki,^e Vito Lippolis,^a Félix Sancenón,^bcd Ramón Martínez-Máñez,

*^bcd Agata Owczarzak,^e Claudio Santi,^f M. Andrea Scorciapino

^g and Claudia Caltagirone

*^a

Author affiliations

* Corresponding authors

^a Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, 09042 Monserrato (CA), Italy
E-mail: ccaltagirone@unica.it

^b Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València,
E-mail: rmaez@qim.upv.es

^c Departamento de Quìmica, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain

^d CIBER de Bioingenierìa, Biomateriales y Nanomedicina (CIBER-BBN),

^e Faculty of Chemistry Adam Mickiewicz University Umultowska 89b, 61-614 Poznań, Poland

^f Università degli Studi di Perugia, Dipartimento di Scienze Farmaceutiche, Via del Liceo, 1, 06123 Perugia, Italy

^g Dipartimento di Scienze Biomediche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, 09042 Monserrato (CA), Italy

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.

This article is part of the themed collection: Selenium & Tellurium chemistry at the beginning of the 3rd millennium: a celebration of ICCST

Chemical Communications

A new class of silica-supported chromo-fluorogenic chemosensors for anion recognition based on a selenourea scaffold†

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A new class of silica-supported chromo-fluorogenic chemosensors for anion recognition based on a selenourea scaffold

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