New amino acid ligated yttrium hydroxy clusters

Dominique T. Thielemann; Ignacio Fernández; Peter W. Roesky

doi:10.1039/C001464H

New amino acid ligated yttrium hydroxy clusters

Dominique T. Thielemann,^a Ignacio Fernández^b and Peter W. Roesky*^a

* Corresponding authors

^a Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstr. 15, Geb. 30.45, Karlsruhe, Germany
E-mail: roesky@kit.edu
Fax: (+49) 721-608-4854
Tel: (+49) 721-608-6117

^b Área de Química Orgánica, Universidad de Almería, Crta. Sacramento s/n, Almeria, Spain
E-mail: ifernan@ual.es

Abstract

The synthesis of the four mixed pentanuclear yttrium hydroxy clusters [Y₅(OH)₅(α-AA)₄(Ph₂acac)₆] (α-AA = D-phenyl glycine, L-proline, L-valine, and L-tryptophan; Ph₂acac = dibenzoylmethanide) is reported. The solid state structures of all compounds were established by single crystal X-ray diffraction. In these enantiomerically pure chiral clusters the dibenzoylmethanide and amino acid ligands are accommodated in the coordination spheres of the yttrium atoms. The specific optical rotations of all four compounds were determined. PGSE NMR diffusion measurements as function of concentration have been carried out on one model cluster, proving these molecules to be prone to aggregation in chloroform solutions.

This article is part of the themed collection: New horizons in organo-f-block chemistry

Supplementary files

Publication details

The article was received on 22 Jan 2010, accepted on 01 Apr 2010 and first published on 05 May 2010

Article type: Paper

DOI: 10.1039/C001464H

Citation: Dalton Trans., 2010,39, 6661-6666

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New amino acid ligated yttrium hydroxy clusters

D. T. Thielemann, I. Fernández and P. W. Roesky, Dalton Trans., 2010, 39, 6661
DOI: 10.1039/C001464H
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Dalton Transactions

New amino acid ligated yttrium hydroxy clusters

Abstract

Supplementary files

Publication details

New amino acid ligated yttrium hydroxy clusters

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