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Costero Nieto, Ana María; Peransi Llopis, Sergio Manuel | |||
Aquest document és un/a article, creat/da en: 2007 | |||
Este documento está disponible también en : http://www.arkat-usa.org/get-file/18660/ |
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A new colorimetric sensor for fluoride is described. Compound 1 shows an open structure and its behaviour is compared with that of two related closed compounds 2 and 3. In all cases, the red colour developed in the presence of fluoride can be related to deprotonation processes, however ligand 1 gives rise to a faster colour change than 2 or 3 because of its higher flexibility. Other halides as well as carboxylates have been studied and the stoichiometry and complexation constants for the corresponding ligands have been determined. | |||
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