Issue 8, 2002

Dihydroxybenzoquinone and chloranilic acid derivatives of rare earth metals

Abstract

The crystal structures of lanthanide complexes involving the dianions of dihydroxybenzoquinone (H2dhbq) or chloranilic acid (H2can) are presented. The complexes, Ln2dhbq3·24H2O (Ln = Y, La, Ce, Gd, Yb and Lu) are 2-D coordination polymers with metal centres linked by dhbq2− ligands. Each of these species contain a Ln2(H2O)18 pentagonal dodecahedral cage. Despite the variation in the radii of lanthanide ions this series is isostructural. In contrast, the hydrated structures of Ln2can3 (Ln = Sc, Y, La, Pr, Nd, Gd, Tb, Yb and Lu) show considerable structural variation. The crystal structures of the diamond-like networks Ycan2 and Thcan2 are also presented.

Graphical abstract: Dihydroxybenzoquinone and chloranilic acid derivatives of rare earth metals

Supplementary files

Article information

Article type
Paper
Submitted
11 Oct 2001
Accepted
29 Jan 2002
First published
15 Mar 2002

J. Chem. Soc., Dalton Trans., 2002, 1586-1594

Dihydroxybenzoquinone and chloranilic acid derivatives of rare earth metals

B. F. Abrahams, J. Coleiro, K. Ha, B. F. Hoskins, S. D. Orchard and R. Robson, J. Chem. Soc., Dalton Trans., 2002, 1586 DOI: 10.1039/B109296K

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