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Issue 29, 2011
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Benzotriazolate cage complexes of tin(ii) and lithium: halide-influenced serendipitous assembly

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Abstract

The one-pot reactions of the tin(II) halides SnX2 (X = F, Cl, Br, I) with lithium hexamethyldisilazide, [Li(hmds)], and benzotriazole, (bta)H, produce contrasting outcomes. Tin(II) fluoride does not react with [Li(hmds)] and (bta)H, the outcome being the formation of insoluble [Li(bta)]. Tin(II) chloride and tin(II) bromide react with [Li(hmds)] and (bta)H in toluene to produce the hexadecametallic tin(II)-lithium cages [(hmds)8Sn8(bta)12Li8X4]·(ntoluene) [X = Cl, 3·(8 toluene); X = Br, 4·(3 toluene)]. The reaction of tin(II) iodide with [Li(hmds)] and (bta)H in thf solvent produces the ion-separated species [{(thf)2Li(bta)}3{Li(thf)}]2[SnI4]·(thf), [5]2[SnI4]·(thf), the structure of which contains a cyclic trimeric unit of lithium benzotriazolate and a rare example of the tetraiodostannate(II) dianion.

Graphical abstract: Benzotriazolate cage complexes of tin(ii) and lithium: halide-influenced serendipitous assembly

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Article information


Submitted
10 Mar 2011
Accepted
10 May 2011
First published
22 Jun 2011

Dalton Trans., 2011,40, 7559-7563
Article type
Paper

Benzotriazolate cage complexes of tin(II) and lithium: halide-influenced serendipitous assembly

S. A. Sulway, R. A. Layfield, M. Bodensteiner, S. Scheuermayer, M. Scheer and M. Zabel, Dalton Trans., 2011, 40, 7559
DOI: 10.1039/C1DT10400D

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