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Communication between Components in Metal-Directed Assemblies of Oriented Calix[6]arene-Based Pseudorotaxanes and Rotaxanes

Authors

  • Arturo Arduini,

    1. Dipartimento di Chimica Organica e Industriale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy, Fax: +39-0521-905472
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  • Rocco Bussolati,

    1. Dipartimento di Chimica Organica e Industriale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy, Fax: +39-0521-905472
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  • Daniele Masseroni,

    1. Dipartimento di Chimica Organica e Industriale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy, Fax: +39-0521-905472
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  • Guy Royal,

    1. Département de Chimie Moléculaire, UMR CNRS-5250, Institut de Chimie Moléculaire de Grenoble, FR CNRS-2607, Université Joseph Fourier Grenoble I BP 53, 38041 Grenoble Cedex 9, France
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  • Andrea Secchi

    1. Dipartimento di Chimica Organica e Industriale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy, Fax: +39-0521-905472
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  • Dedicated to Professor Andrea Pochini on the occasion of his retirement

Abstract

Oriented calix[6]arene-based pseudorotaxanes and rotaxanes where the axial component bears a terpyridine ligand as a stopper positioned at the upper rim of the calixarene have been synthesized. The binding ability of the terpyridine unit present in the axle toward zinc salts is affected by the presence of the wheel, its distance with respect to the calix[6]arene upper rim, and the nature of the counterion of the zinc salt employed. Metal coordination at the terpyridine unit changes the electrochemical behavior of the 4,4′-bipyridinium unit of the axle inside the wheel in both the pseudorotaxanes and rotaxanes.

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