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Reactions with a Metalloid Tin Cluster {Sn 10 [Si(SiMe 3 ) 3 ] 4 } 2− : Ligand Elimination versus Coordination Chemistry
Author(s) -
Schrenk Claudio,
Gerke Birgit,
Pöttgen Rainer,
Clayborne Andre,
Schnepf Andreas
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201500550
Subject(s) - metalloid , tin , germanium , cluster (spacecraft) , reactivity (psychology) , chemistry , ligand (biochemistry) , inorganic chemistry , crystallography , metal , silicon , organic chemistry , biochemistry , alternative medicine , computer science , programming language , pathology , medicine , receptor
Chemistry that uses metalloid tin clusters as a starting material is of fundamental interest towards understanding the reactivity of such compounds. Since we identified {Sn 10 [Si(SiMe 3 ) 3 ] 4 } 2− 7 as an ideal candidate for such reactions, we present a further step in the understanding of metalloid tin cluster chemistry. In contrast to germanium chemistry, ligand elimination seems to be a major reaction channel, which leads to the more open metalloid cluster {Sn 10 [Si(SiMe 3 ) 3 ] 3 } − 9 , in which the Sn core is only shielded by three Si(SiMe 3 ) 3 ligands. Compound 9 is obtained through different routes and is crystallised together with two different countercations. Besides the structural characterisation of this novel metalloid tin cluster, the electronic structure is analysed by 119 Sn Mössbauer spectroscopy. Additionally, possible reaction pathways are discussed. The presented first step into the chemistry of metalloid tin clusters thus indicates that, with respect to metalloid germanium clusters, more reaction channels are accessible, thereby leading to a more complex reaction system.