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Synthesis and crystal structures of new lanthanide hydroxyhalide anion exchange materials, Ln2(OH)5X·1.5H2O (X = Cl, Br; Ln = Y, Dy, Er, Yb)

Poudret, Leslie; Prior, Timothy J.; McIntyre, Laura J.; Fogg, Andrew M.

Authors

Leslie Poudret

Laura J. McIntyre

Andrew M. Fogg



Abstract

A family of layered lanthanide hydroxyhalide intercalation hosts, Ln 2 (OH) 5 X·1.5H 2 0 (X = Cl, Br; Ln = Y, Dy, Er, Yb), has been synthesized under hydrothermal conditions and their crystal structure determined. These are the first structures for the m = 1 members of the Ln 2 (OH) 6-m (A) m ·nH 2 O family of intercalation hosts to be determined. Reaction mixtures with Ln = Yb always yield a biphasic product which adopts an orthorhombic or monoclinic crystal structure. In both cases the layer composition is [Yb 2 (OH) 5 (H 2 O) 1.5 ] + and the Yb is eight or nine coordinated to bridging hydroxide anions and coordinated water molecules. Charge balancing halide anions are located in the interlayer gallery. The orthorhombic structure is adopted by the other chloride host lattices and the monoclinic one by Y 2 (OH) 5 Br·1. 5H 2 O. These materials have been shown to undergo facile room temperature anion exchange reactions with a range of organic dicarboxylates. © 2008 American Chemical Society.

Citation

Poudret, L., Prior, T. J., McIntyre, L. J., & Fogg, A. M. (2008). Synthesis and crystal structures of new lanthanide hydroxyhalide anion exchange materials, Ln2(OH)5X·1.5H2O (X = Cl, Br; Ln = Y, Dy, Er, Yb). Chemistry of materials : a publication of the American Chemical Society, 20(24), 7447-7453. https://doi.org/10.1021/cm802301a

Journal Article Type Article
Acceptance Date Nov 17, 2008
Publication Date Dec 23, 2008
Deposit Date Nov 13, 2014
Publicly Available Date
Journal Chemistry Of Materials
Print ISSN 0897-4756
Electronic ISSN 1520-5002
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 20
Issue 24
Pages 7447-7453
DOI https://doi.org/10.1021/cm802301a
Keywords Materials Chemistry; General Chemistry; General Chemical Engineering
Public URL https://hull-repository.worktribe.com/output/460779
Publisher URL https://pubs.acs.org/doi/abs/10.1021/cm802301a