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Title: Colorimetric and fluorescence 'turn-on' recognition of fluoride by a maleonitrile-based uranyl salen-complex
Author: Bartocci, Silvia
Sabaté, Ferran
Bosque Pueyo, Ramón
Keymeulen, Flore
Bartik, Kristin
Rodríguez Raurell, Laura
Dalla Cort, Antonella
Keywords: Urani
Teoria del funcional de densitat
Density functionals
Issue Date: 1-Dec-2016
Publisher: Elsevier B.V.
Abstract: The synthesis and characterization of two new uranyl-salen complexes, 1-2, based on a 1,2-diaminomaleonitrile unit, is described. Spectroscopic studies to evaluate their potential as colorimetric probes for fluoride detection in chloroform and dichloromethane were undertaken. Compound 2 exhibits a 'turn-on' response characterized by a naked-eye colorimetric change for the selective recognition of fluoride in both solvents. DFT calculations show that the stabilization energy for the formation of the host:guest complex follows the trend F- > Cl- > Br- hence supporting the experimental data.
Note: Versió postprint del document publicat a:
It is part of: Dyes and Pigments, 2016, vol. 135, p. 94-101
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ISSN: 0143-7208
Appears in Collections:Articles publicats en revistes (Química Inorgànica i Orgànica)

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