Selective detection of F- by chromogenic tetrazole receptor

Agnieszka Pazik; Anna Skwierawska

Selective detection of F- by chromogenic tetrazole receptor

Abstract

A chromogenic anion host 4, containing two amide functionalities linked to azo dye and tetrazole rings was synthesized and its complexes with various anions were investigated. The results show that receptor 4 can recognize selectively biologically important F- ion. The binding affinity for F- was investigated by naked-eye colour change, UV-Vis and 1H NMR spectroscopy. Addition F- ion in CH3CN and DMSO to receptor 4 cause a colour change solution from colorless to yellow. The stoichiometry for host:anion is 1:1. Furthermore, receptor 4 was used as ion carrier in ion-selective membrane electrodes. Selectivity of this membrane was studied toward various anions in water solution. Binding behaviour of receptor 4 towards several anions (Cl-, F-, Br-, I-) have been investigated using density functional theory calculations.

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Category:: Articles
Type:: artykuł w czasopiśmie wyróżnionym w JCR
Published in:: SUPRAMOLECULAR CHEMISTRY no. 25, edition 4, pages 189 - 198,
ISSN: 1061-0278
Language:: English
Publication year:: 2013
Bibliographic description:: Pazik A., Skwierawska A.: Selective detection of F- by chromogenic tetrazole receptor// SUPRAMOLECULAR CHEMISTRY. -Vol. 25, iss. 4 (2013), s.189-198
Verified by:: Gdańsk University of Technology