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Issue 28, 2011
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Rational creation of chiral multinuclear and metallosupramolecular compounds from thiol-containing amino acids

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Abstract

Developments in the rational creation of chiral multinuclear and metallosupramolecular compounds based on linear-type metal complexes with penicillaminate (pen), as well as their functionality as a multidentate chiral metalloligand, is the main subject of this paper. The reactions of a mononuclear AuI complex, [Au(D-pen)2]3, in which two D-pen ligands bind to an AuI center through thiolato S atoms, with transition metal ions afford a variety of S-bridged heterobimetallic multinuclear complexes, the structures and properties of which are highly dependent on the nature of reacting metal ions. The created multinuclear complexes still act as a metalloligand when they possess free amine and/or carboxylate groups, leading to the formation of heterotrimetallic supramolecular structures by reacting with third metal ions. While the Au–S bonds in [Au(D-pen)2]3 are generally retained in the course of the reactions with metal ions, this is not the case for the Hg–S bonds in the corresponding HgII complex, [Hg(D-pen)2]2. A remarkable chiral behavior of multinuclear complexes composed of [Au(L-cys)2]3 (cys = cysteinate), which is opposite to that composed of [Au(L-pen)2]3, is also presented.

Graphical abstract: Rational creation of chiral multinuclear and metallosupramolecular compounds from thiol-containing amino acids

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Publication details

The article was received on 30 Nov 2010, accepted on 18 Mar 2011 and first published on 18 Apr 2011


Article type: Perspective
DOI: 10.1039/C0DT01660H
Citation: Dalton Trans., 2011,40, 7249-7263
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    Rational creation of chiral multinuclear and metallosupramolecular compounds from thiol-containing amino acids

    A. Igashira-Kamiyama and T. Konno, Dalton Trans., 2011, 40, 7249
    DOI: 10.1039/C0DT01660H

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