calixarene; electrochemistry; calixdiquinone; silver(I) detection; mass spectrometry
Abstract :
[en] Electrochemical oxidation of 5,11,17,23-tetra-tert-butyl-25,26-bis(diphenylphosphinoylmethoxy)-27,28-dihydroxycalix[4]arene (3), a calixarene with two phosphoryl units appended on proximal positions, affords the corresponding '1,2-diquinonecalix[4]arene' (4). The formation of 4 results from nucleophilic attack of residual water on anodically generated diphenoxylium. cations. Preliminary voltammetric experiments in CH3CN on a platinum electrode showed that 4 is suitable for electrochemical detection of the silver metal cation. (C) 2002 Elsevier Science B.V. All rights reserved.
Disciplines :
Chemistry
Author, co-author :
Vataj, Rame
Ridaoui, Hassan
Louati, Alain
Gabelica, Valérie ; Université de Liège - ULiège > Chimie physique, spectrométrie de masse
Steyer, Stéphane
Matt, Dominique
Language :
English
Title :
First synthesis of a '1,2-diquinone-calix[4]arene'. Interaction of its reduced form with Ag+
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