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Issue 46, 2012
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Syntheses and structures of lanthanoid(II) complexes featuring Sn–M (M = Al, Ga, In) bonds

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Abstract

The reactions of the tris(pyridyl)tin(II) derivative [Li(thf)Sn(2-pyR)3] (pyR = C5H3N-5-Me) (1) with the heavier group 13 alkyl compounds MEt3, M = Ga or In, have been carried out. These led to formation of [{Li(thf)Sn(2-pyR)3}MEt3] adducts, which exhibit long Sn–M bonds and can be used for further lanthanoid metal coordination via the salt metathesis reaction with [Eu(Cp*)2(OEt2)] (Cp* = η5-C5Me5) to give complexes [Eu{Sn(2-pyR)3MEt3}2]. In contrast, addition of the lighter group 13 analogue, (AlMe3)2, to 1 resulted in a pyridyl transfer reaction, yielding dimeric [AlMe2(2-pyR)]2. For comparison, the reaction of (AlMe3)2 with [Yb{Sn(2-pyR)3}2] (pyR = C5H3N-3-Me) was explored, affording complex [Yb{Sn(2-pyR)3AlMe3}2]. All complexes have been characterised by NMR spectroscopy and X-ray crystallographic studies.

Graphical abstract: Syntheses and structures of lanthanoid(ii) complexes featuring Sn–M (M = Al, Ga, In) bonds

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Publication details

The article was received on 02 Aug 2012, accepted on 12 Sep 2012 and first published on 02 Oct 2012


Article type: Paper
DOI: 10.1039/C2DT31768K
Citation: Dalton Trans., 2012,41, 14101-14106
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    Syntheses and structures of lanthanoid(II) complexes featuring Sn–M (M = Al, Ga, In) bonds

    K. Zeckert, Dalton Trans., 2012, 41, 14101
    DOI: 10.1039/C2DT31768K

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