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Issue 5, 2005
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Dinuclear complexes of a pseudocalixarene macrocycle: structural consequences of intramolecular hydrogen bonding

Julia Barreira Fontecha,a  Sandrine Goetza  and  Vickie McKee*a 
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a Chemistry Department, Loughborough University, Loughborough, UK

Abstract

A series of dinuclear complexes of a pseudocalixarene macrocycle H6L containing two 2,2′-methylenediphenol groups have been synthesised and structurally characterised. Using divalent metal ions, complexes containing a common hyperbolic paraboloid (saddle) M2(H4L)2+ core are formed. The structure is controlled by two strong O–H–O interactions resulting from metal ion-promoted monodeprotonation of the methylenediphenol units. The metal ions are located in a cleft within which neutral or anionic guests can bind. Use of trivalent metal ions leads to complete deprotonation of the phenol groups and loss of the saddle conformation.

Graphical abstract: Dinuclear complexes of a pseudocalixarene macrocycle: structural consequences of intramolecular hydrogen bonding

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Publication details

The article was received on 03 Sep 2004, accepted on 17 Nov 2004 and first published on 01 Feb 2005


Article type: Paper
DOI: 10.1039/B413639J
Citation: Dalton Trans., 2005,0, 923-929
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    Dinuclear complexes of a pseudocalixarene macrocycle: structural consequences of intramolecular hydrogen bonding

    J. B. Fontecha, S. Goetz and V. McKee, Dalton Trans., 2005, 0, 923
    DOI: 10.1039/B413639J

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