Article

Synthesis and complexing properties of methylated calix[4](aza)crown derivatives

Faculté des Sciences de Bizerte, Université de Tunis II, 7021 Zarzouna-Bizerte, Tunisia; CEA/Saclay, SCM (CNRS URA 331), Bât. 125, F-91191 Gif sur Yvette, France; Ecole Chimie Polymères Matériaux, Laboratoire de Chimie des Interactions Moléculaires Spécifiques, associé au CNRS, 25, rue Becquerel, F-67087 Strasbourg Cédex 2, France
Tetrahedron Letters DOI:10.1016/S0040-4039(00)01438-6 pp.8263-8267

ABSTRACT The synthesis of methylated calix[4](aza)crowns and their complexing properties towards Co2+, Ni2+ and Cu2+ are described. The crystal structure of one of those ligands, hydrogen bonded to a picric acid molecule via a water molecule, is given.

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Keywords

crystal structure
 
methylated calix[4](aza)crowns
 
picric acid molecule