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Calixthioamides as Ionophores for Transition‐ and Heavy‐Metal Cations
Author(s) -
Kulesza Joanna,
Bocheńska Maria
Publication year - 2011
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201000663
Subject(s) - chemistry , transition metal , calixarene , sulfur , metal , inorganic chemistry , metal ions in aqueous solution , ion , combinatorial chemistry , organic chemistry , molecule , catalysis
There is an increasing interest in applying p‐tert ‐butylcalix[4]arenes as sensing materials in ion‐selective electrodes (ISEs). Considerable efforts were made to design calixarenes that are selective for some heavy‐ or transition‐metal ions to be used in ISEs for controlling and monitoring the level of such pollutants in the environment. It has been reported that introduction of softer sulfur atoms instead of oxygen atoms in calix[4]arene substituents promotes their complexing ability towards transition‐ and heavy‐metal ions, which are toxic for human beings and pollute the environment. In this microreview, we present sulfur‐containing calix[4]arenes acting as sensing materials for metal cations such as Ag + , Pb 2+ , Cu 2+ , Cd 2+ but also as efficient extractants for Pd 2+ , Au 3+ and Hg 2+ .