Synthesis of tetra-substituted calix[4]arene ionophores and their recognition studies toward toxic arsenate anions

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dc.contributor.authorBayrakci, Mevlut
dc.contributor.authorYigiter, Sengul
dc.date.accessioned2020-03-26T18:43:41Z
dc.date.available2020-03-26T18:43:41Z
dc.date.issued2013
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractThe article displays the synthesis of a family of novel tetra-substituted calix[4]arene ionophores bearing furyl, phenyl, and pyridyl units in the cone conformation. In the synthesis, the lower rims of calix[4]arene scaffold were modified in order to establish the influence of the molecular structure of calixarene on recognition of toxic anions as arsenate by liquid-liquid extraction process. In addition, the effects of solvent, solution conditions (mainly pH), and counter ions (Cl-, NO3-, and SO42-) on the extraction abilities of the ionophores were studied. From the liquid-liquid phase extraction studies, it was observed that the structures of the tetra-substituted calix[4]arenes influenced the extraction percentage of selected toxic anion. Also, thermodynamic parameters, such as the free energy (Delta G degrees) and enthalpy (Delta H degrees) indicated an exothermic nature of extraction and a spontaneous and favorable process. (C) 2013 Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipSelcuk UniversitySelcuk University; Nigde University Research Foundation (BAP)Omer Halis Demir Universityen_US
dc.description.sponsorshipThe authors gratefully would like to thank Selcuk University and Nigde University Research Foundation (BAP) for financial support.en_US
dc.identifier.doi10.1016/j.tet.2013.02.050en_US
dc.identifier.endpage3224en_US
dc.identifier.issn0040-4020en_US
dc.identifier.issue15en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage3218en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.tet.2013.02.050
dc.identifier.urihttps://hdl.handle.net/20.500.12395/29873
dc.identifier.volume69en_US
dc.identifier.wosWOS:000316582400012en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherPERGAMON-ELSEVIER SCIENCE LTDen_US
dc.relation.ispartofTETRAHEDRONen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectCalixareneen_US
dc.subjectAcetamideen_US
dc.subjectArsenateen_US
dc.subjectAnion recognitionen_US
dc.subjectLiquid-liquid extractionen_US
dc.titleSynthesis of tetra-substituted calix[4]arene ionophores and their recognition studies toward toxic arsenate anionsen_US
dc.typeArticleen_US

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