Bis(calixcrown)tetrathiafulvalene receptors |
| |
Authors: | Blesa María-Jesús Zhao Bang-Tun Allain Magali Le Derf Franck Sallé Marc |
| |
Institution: | Laboratoire de Chimie et Ingénierie Moléculaire des Matériaux d'Angers (CIMMA), Groupe Synthèse Organique et Matériaux Fonctionnels, UMR CNRS 6200, Université d'Angers, 2 Bd Lavoisier, 49045 Angers (France). |
| |
Abstract: | A new class of electroactive receptors has been synthesized, built by covalent association of five subunits: two calixarene platforms for spatial organization, two polyether 3D cavities for cation binding, and one electroactive TTF unit to probe the complexation event. Sodium complexation induces rigidification of the molecular assembly, as shown by 1H NMR titration and single-crystal X-ray crystallographic studies on free receptor 14 and a corresponding complex with two bound sodium atoms per receptor (15-(NaPF6)2). The calixarene units in these receptors change from a pinched cone conformation in the free ligand to a symmetrical cone in the complex. Cyclovoltammetric studies validated the electrochemical recognition concept of these five-member assemblies. |
| |
Keywords: | calixarenes crown compounds cyclic voltammetry host–guest systems receptors |
本文献已被 PubMed 等数据库收录! |
|