Potassium selective calix[4]semitubes.

A new class of ionophore consisting of two calix[4]arene units linked through the lower rim by two ethylene chains, in combination with propyl ether and phenolic functional groups, has been developed. These calix[4]semitube molecules exhibit remarkable selectivity and fast complexation kinetics for...

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Main Authors: Webber, P, Cowley, A, Drew, MG, Beer, P
Format: Journal article
Language:English
Published: 2003
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author Webber, P
Cowley, A
Drew, MG
Beer, P
author_facet Webber, P
Cowley, A
Drew, MG
Beer, P
author_sort Webber, P
collection OXFORD
description A new class of ionophore consisting of two calix[4]arene units linked through the lower rim by two ethylene chains, in combination with propyl ether and phenolic functional groups, has been developed. These calix[4]semitube molecules exhibit remarkable selectivity and fast complexation kinetics for potassium over all Group 1 metal cations. Molecular modelling studies, using structural models derived from crystallographic data, suggest the potassium cation is complexed by a horizontal, side-on route and not through the calix[4]arene annulus. The length of the bridging alkylene chain between the respective calix[4]arenes of the semitube structure dictates the strength and selectivity of alkali metal cation binding.
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spelling oxford-uuid:304d11c2-6388-4896-a51d-9c72b2fd4d182022-03-26T13:00:34ZPotassium selective calix[4]semitubes.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:304d11c2-6388-4896-a51d-9c72b2fd4d18EnglishSymplectic Elements at Oxford2003Webber, PCowley, ADrew, MGBeer, PA new class of ionophore consisting of two calix[4]arene units linked through the lower rim by two ethylene chains, in combination with propyl ether and phenolic functional groups, has been developed. These calix[4]semitube molecules exhibit remarkable selectivity and fast complexation kinetics for potassium over all Group 1 metal cations. Molecular modelling studies, using structural models derived from crystallographic data, suggest the potassium cation is complexed by a horizontal, side-on route and not through the calix[4]arene annulus. The length of the bridging alkylene chain between the respective calix[4]arenes of the semitube structure dictates the strength and selectivity of alkali metal cation binding.
spellingShingle Webber, P
Cowley, A
Drew, MG
Beer, P
Potassium selective calix[4]semitubes.
title Potassium selective calix[4]semitubes.
title_full Potassium selective calix[4]semitubes.
title_fullStr Potassium selective calix[4]semitubes.
title_full_unstemmed Potassium selective calix[4]semitubes.
title_short Potassium selective calix[4]semitubes.
title_sort potassium selective calix 4 semitubes
work_keys_str_mv AT webberp potassiumselectivecalix4semitubes
AT cowleya potassiumselectivecalix4semitubes
AT drewmg potassiumselectivecalix4semitubes
AT beerp potassiumselectivecalix4semitubes