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Organotin Compounds as Reagents for the Synthesis of Lanthanoid Complexes by Redox Transmetallation Reactions

✍ Scribed by Samar Beaini; Glen B. Deacon; Matthias Hilder; Peter C. Junk; David R. Turner

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
186 KB
Volume
2006
Category
Article
ISSN
1434-1948

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✦ Synopsis

Abstract

Redox transmetallation reactions between trimethyltin compounds, SnMe~3~L [L = 3,5‐diphenylpyrazolate (Ph~2~pz), 2,6‐di‐tert‐butyl‐4‐methylphenolate (OAr), or C~6~F~5~] and lanthanoid metals have yielded [Ln(Ph~2~pz)~2~(DME)~2~] (Ln = Eu, Yb), [Ln(Ph~2~pz)~3~(DME)~2~] (Ln = Y, La, Nd, Eu), [Ln(Ph~2~pz)~3~(THF)~3~] (Ln = Nd, Sm), [Ln(Ph~2~pz)~3~(THF)~2~] (Ln = Y, Yb), [Sm(OAr)~3~(THF)], [Yb(OAr)~2~(THF)~3~], and [Yb(C~6~F~5~)~2~(THF)~4~] complexes in yields generally competitive with those from othermethods, and hexamethylditin. The crystal structures of [Nd(Ph~2~pz)~3~(DME)~2~]·DME, [Eu(Ph~2~pz)~3~(DME)~2~]·2DME, and [Sm(Ph~2~pz)~3~(THF)~3~]·3THF were determined. All have nine‐coordination of the lanthanoid atom and three η^2^‐Ph~2~pz ligands, the first two also having an η^1^‐ and an η^2^‐DME ligand and the last having three THF ligands. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)

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