The formation of a metalloid Sn(10)[Si(SiMe(3))(3)](6) cluster compound and its relation to the alpha<-->beta tin phase transition

Very recently it was shown that Sn monohalides can be prepared in preparative scale applying a preparative co-condensation technique. Here, a first reaction of Sn(i)Br is presented leading to the metalloid cluster compound Sn(10)[Si(SiMe(3))(3)](6) 1. This reaction can be seen as a first step to met...

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Published inDalton transactions : an international journal of inorganic chemistry Vol. 39; no. 7; pp. 1872 - 1876
Main Authors Schrenk, Claudio, Schellenberg, Inga, Pöttgen, Rainer, Schnepf, Andreas
Format Journal Article
LanguageEnglish
Published England 21.02.2010
Subjects
Crystallography, X-Ray
Models, Molecular
Organometallic Compounds - chemical synthesis
Organometallic Compounds - chemistry
Phase Transition
Silicon - chemistry
Tin - chemistry
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Summary:Very recently it was shown that Sn monohalides can be prepared in preparative scale applying a preparative co-condensation technique. Here, a first reaction of Sn(i)Br is presented leading to the metalloid cluster compound Sn(10)[Si(SiMe(3))(3)](6) 1. This reaction can be seen as a first step to metalloid cluster compounds applying the disproportionation reaction of a metastable Sn monohalide. The ten tin atoms in 1 are arranged in the form of a centaur polyhedron, representing a novel structural motif in tin chemistry. The structural and electronic properties of 1 and its relation to the phase transition alpha<-->beta tin are discussed with the aid of quantum chemical calculations as well as (119)Sn Mössbauer spectroscopy.
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ISSN:1477-9234
DOI:10.1039/b921392a