Synthesis and study of allosteric effects on extraction behaviour of novel calixarene-based dichromate anion receptors

Basit Öğe Kaydı
dc.contributor.authorYilmaz, A
dc.contributor.authorMemon, S
dc.contributor.authorYilmaz, M
dc.date.accessioned2020-03-26T16:39:41Z
dc.date.available2020-03-26T16:39:41Z
dc.date.issued2002
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractIn this study the selective derivatization of p-tert-butylcalix[4]arene was carried out and two new calix[4]arene-based azacrown ionophores, 5,17-di-tert-butyl-11,23-di-(methyl-3,5-dioxaoctane-1,8-diimine)-25,26,27,28-tetrahydroxycalix[4]arene (6), and 5,17-di-tertbutyl-11,23-di-(methyl-3,5-dioxaoctane-1,8-diimine)-25,27-diethoxyformyl-methoxy-26,28-dihydroxycalix[4]arene (7) have been synthesized. Treatment of 5,17-di-tert-butyl-11,23-diformylcalix[4]arene-25,26,27,28-tetrol (5) with 1,8-diamino-3,6-dioxaoctane gave the ionophore 6 which was converted to its diester derivative 7 by reaction with ethylbromoacetate in the presence of potassium carbonate. In the synthesis, the upper and lower rims of p-tert-butylcalix[4]arene were modified in order to acquire binding sites for the recognition of metal cations and dichromate anions. It was observed that receptor 7 is a better extractant for Cr2O72- anions than receptors 6. The protonated alkylinium form of 7 is an effective extractant for transferring the Cr2O72- anions from aqueous into a dichloromethane layer and failed in transferring Na+ cations due to the allosteric effect produced by the crown part of the calix moiety present at the p-position. (C) 2002 Elsevier Science Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/S0040-4020(02)00837-2en_US
dc.identifier.endpage7740en_US
dc.identifier.issn0040-4020en_US
dc.identifier.issue38en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage7735en_US
dc.identifier.urihttps://dx.doi.org/10.1016/S0040-4020(02)00837-2
dc.identifier.urihttps://hdl.handle.net/20.500.12395/18051
dc.identifier.volume58en_US
dc.identifier.wosWOS:000178028700019en_US
dc.identifier.wosqualityQ1en_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.subjectp-tert-butylcalix[4]areneen_US
dc.subjectSchiff-baseen_US
dc.subjectphase transferen_US
dc.subjectextractanten_US
dc.subjectdichromate anionsen_US
dc.subjectsupramolecular chemistryen_US
dc.titleSynthesis and study of allosteric effects on extraction behaviour of novel calixarene-based dichromate anion receptorsen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu