UV-vis spectroscopic characterization of heterocyclic azines as colorimetric chemosensors for metal ion detection

Thienyl, pirrolyl and furyl azine derivatives L1-L3 were obtained in excellent yields (93-98%) using a simple methodology that allows their synthesis and purification in higher yields, compared to previous methods. The photophysical properties of compounds L1-L3 were studied by UV-vis spectroscopy i...

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Bibliographic Details
Main Author: Batista, Rosa Maria Ferreira (author)
Other Authors: Costa, Susana P. G. (author), Raposo, M. Manuela M. (author)
Format: conferenceObject
Language:eng
Published: 2014
Subjects:
Azines
Heterocycles
Colorimetric chemosensors
Metal ion detection
Synthesis
Thiophene
Pyrrole
Furan
UV-visible spectroscopy
Ciências Naturais::Ciências Químicas
Online Access:http://hdl.handle.net/1822/32079
Country:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/32079
Description
Summary:Thienyl, pirrolyl and furyl azine derivatives L1-L3 were obtained in excellent yields (93-98%) using a simple methodology that allows their synthesis and purification in higher yields, compared to previous methods. The photophysical properties of compounds L1-L3 were studied by UV-vis spectroscopy in acetonitrile. Spectrophotometric titrations of receptors L1-L3 in the same solvent, in the presence of several cations such as Cd(II), Co(II), Cr(III), Cu(II), Fe(II), Fe(III), Hg(II), Ni(II), Pb(II), Pd(II) and Zn(II) revealed that they could be used as colorimetric chemosensors for Hg(II), Cu(II), Cr(III) and Fe(III).

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