Issue 39, 2011
From the journal:

Dalton Transactions

Binucleating behaviour of a proximally-diphosphinated calix[4]arene†

Mouhamad Awada,a   Catherine Jeunesse,*a   Dominique Matt,*a   Loic Toupetb  and  Richard Welterc  

* Corresponding authors

a Laboratoire de Chimie Inorganique Moléculaire et Catalyse, Université de Strasbourg, Institut de Chimie UMR 7177 CNRS, 1 rue Blaise Pascal, F-67008 Strasbourg cedex, France

b Groupe Matière Condensée et Matériaux, UMR 6626 CNR, Université de Rennes 1, F-35042 Rennes Cedex, France

c Laboratoire DECOMET, Université de Strasbourg, Institut de Chimie UMR 7177 CNRS, 1 rue Blaise Pascal, F-67008 Strasbourg cedex, France

Abstract

The long diphosphine 5,11-diphenylphosphanyl-25,26-dipropyloxy-27,28-bis(2-propenyloxy) calix[4]arene (cone) (5), in which the two phosphorus atoms are separated by a semi-rigid linking unit, was prepared in four steps starting from calix[4]arene. Reaction of 5 with AuCl(SEt2) or [RuCl2(p-cymene)]2 led to calixarenes bearing two metallated pendant arms, [5·(AuCl)2] and [5·{RuCl2(p-cymene)}2], respectively. In the presence of AgBF4 or [Ni(C5H5)(1,5-cyclooctadiene)]BF4, diphosphine 5 displayed a marked tendency to form oligomeric material, but under high dilution conditions dimeric species were obtained selectively. The inability of 5 to form chelate complexes was further illustrated by its reaction with [PdCl2(1,5-cyclooctadiene)2], which led quantitatively to a rare complex in which a diphosphine spans across the dinuclear [PdCl(μ-Cl)2PdCl] unit.

Graphical abstract: Binucleating behaviour of a proximally-diphosphinated calix[4]arene

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Article information

DOI
https://doi.org/10.1039/C1DT10375J
Article type
Paper
Submitted
04 Mar 2011
Accepted
27 Jul 2011
First published
30 Aug 2011

Dalton Trans., 2011,40, 10063-10070

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Binucleating behaviour of a proximally-diphosphinated calix[4]arene

M. Awada, C. Jeunesse, D. Matt, L. Toupet and R. Welter, Dalton Trans., 2011, 40, 10063 DOI: 10.1039/C1DT10375J

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