Ion-Selective Electrodes Based on p-tert-Butyl-homooxacalixarene di(ethyl)amides

Maria Krystyna Bocheńska (1) , Peter J. Cragg (2) , Marcin Guziński (3) , Artur Jasinski (4) , Joanna Kulesza (4) , Paula Maria Marcos (5) , Radosław Pomecko (4)

1 of Chemical Technology
2 Pharmacy and Biomolecular Sciencecs
3 of Chemical Technology
4 Chemical Technology
5 Chemistry Department

Abstract The diethyl amides of p-tert-butyldihomooxacalix[4]arene (1), p-tert-butylhexahomotrioxa-calix[3]arene (2) and p-tert-butylcalix[4]arene (3) were used as active materials in ion-selective membrane electrodes (ISE) to check the detection of different kinds of cations (Na+, K+, Cs+, Mg2+, Ca2+, Mn2+, Cu2+, Zn2+, Cd2+, Pb2+ and TMA+). The electrode characteristics and selectivity coefficients were determined and compared. Optimisation of the PVC membrane composition was achieved using three different plasticizers (DEHA, o-NPOE or BBPA). Amide 3 shows selectivity for Na+, whereas compounds 1 and 2 exhibit the highest selectivity for Pb2+ among all the studied cations. The X-ray crystal structure of dihomooxacalix[4]arene tetra(diethyl)amide 1 was determined revealing it to be in the cone conformation.

Mots clés: Physical Sciences

Maria Krystyna Bocheńska, Peter J. Cragg, Marcin Guziński, Artur Jasinski, Joanna Kulesza, et al.. Ion-Selective Electrodes Based on p-tert-Butyl-homooxacalixarene di(ethyl)amides. Supramolecular Chemistry, 2009, 21 (08), pp.732-737. ⟨10.1080/10610270902853043⟩. ⟨hal-00528956⟩