Please use this identifier to cite or link to this item:
Title: Highly selective optical chemosensor for cyanide in aqueous medium
Author: Rodrigues, João M. M.
Farinha, Andreia A. S.
Tomé, Augusto C.
Cavaleiro, José A. S.
Tomé, João P. C.
Keywords: Anions
Anion binding
Issue Date: 1-Mar-2016
Publisher: Elsevier
Abstract: New cyanide selective chromogenic chemosensors based on metal-phthalocyanines containing four tosylamino groups were developed. These new receptors have high sensitivity for several anions (AcO−, F−, CN−, NO2−, H2PO4− and OH−) over other anions, such as: Br−, Cl−, NO3− and HSO4−. The experiments were conducted by UV–vis spectroscopy in DMSO and THF solutions. The selectivities were also checked in DMSO:water mixtures. In solutions containing water the highest selectivity was obtained for CN− anion. The host:guest complexes formed during the sensing event can be undo by acid treatment with a solution of trifluoroacetic acid without loss of the sensing ability of the chemosensors allowing their reuse.
Peer review: yes
DOI: 10.1016/j.snb.2015.10.026
ISSN: 0925-4005
Appears in Collections:DQ - Artigos
QOPNA - Artigos

Files in This Item:
File Description SizeFormat 
rodrigues2016.pdf2.33 MBAdobe PDFView/Open

Formato BibTex MendeleyEndnote Degois 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.