Chiral lanthanoid dimers ligated by carbohydrate-based diketonates: catalytic and luminescent properties

Gee, William J.;Hierold, Judith;MacLellan, Jonathan G.;Andrews, Philip C.;Lupton, David W.;Junk, Peter C.

Abstract

The reaction of hydrated lanthanoid chlorides (Ln = La, Eu) with chiral, carbohydrate-based diketonate ligands has yielded dimeric species with Ln2L6 composition as determined by MALDI mass spectrometry and single-crystal X-ray crystallography. The X-ray crystallographic analysis identified a chiral cavity formed by interligand repulsion able to coordinate dimethylformamide, prompting investigation of the catalytic properties of the dimers. Preliminary results indicate that the dimers display catalytic activity in thio-Michael addition reactions as well as metal-based luminescence in the case of europium.

Journal

European Journal of Inorganic Chemistry

Publication Name

European Journal of Inorganic Chemistry

Volume

2011

ISBN/ISSN

1099-0682

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Publisher

Wiley-VCH

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DOI

10.1002/ejic.201100505