Synthesis and structures of two thiocyanato-lanthanoid cages

Bakker, Jacinta M., Deacon, Glen B., and Junk, Peter C. (2010) Synthesis and structures of two thiocyanato-lanthanoid cages. Journal of Cluster Science, 21 (3). pp. 439-447.

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The cages [{La2(NCS)5(NCMe)6}2O]·MeCN and [{Eu2(NCS)5(NCMe)5}2O]·MeCN have been prepared by redox transmetallation between the lanthanoid metals and mercuric thiocyanate in acetonitrile. The structure of the former has a core of four La atoms bonded to a central oxygen atom. Two La atoms are nine coordinate being bonded to oxygen, four terminal MeCN ligands and four N-bridged thiocyanato ligands, whereas the other two are eight coordinate being bonded to oxygen, the four bridging thiocyanato ligands, two terminal acetonitrile molecules, and a terminal N-bonded thiocyanate ion. In the Eu complex, there is a similar core of four Ln atoms bound to a central oxygen atom, but all Eu atoms are eight coordinate, and have four N-bridged thiocyanate ligands. Two have three MeCN ligands, whilst the other two have one terminal NCS− and two acetonitrile ligands.

Item ID: 29680
Item Type: Article (Research - C1)
ISSN: 1572-8862
Keywords: lanthanoids, cage compounds, thiocyanates
Funders: Australian Research Council (ARC), MGS
Projects and Grants: ARC DP0984775
Date Deposited: 02 Oct 2013 10:34
FoR Codes: 03 CHEMICAL SCIENCES > 0302 Inorganic Chemistry > 030202 f-Block Chemistry @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970103 Expanding Knowledge in the Chemical Sciences @ 100%
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