Synthesis and structures of bis[bis(trimethylsilyl)amido]-tin(IV) cyclic chalcogenides [{Sn[N(SiMe3)2]2(µ-E)}2] and a heterobimetallic analogue [{(Me3Si)2N}2Ge(µ-Te)2Sn-{N(SiMe3)2}2](E = S, Se or Te)
- 1 January 1995
- journal article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 19,p. 3179-3187
- https://doi.org/10.1039/dt9950003179
Abstract
Each of the four-membered ring compounds [{Sn[N(SiMe3)2]2(µ-E)}2](E = S 1, Se 2 or Te 3) has been prepared by the oxidative addition of the chalcogen E to Sn[N(SiMe3)2]2 promoted by sonication in a faster reaction and in a higher yield than previously achieved. The first heterobimetallic analogues [{(Me3Si)2N}2Ge(µ-E)2Sn{N(SiMe3)2}2](E = Te 4 or Se 5) were obtained similarly from a mixture of the two metal(II) amides and the chalcogen. Compounds 1–4 have been characterised by single crystal X-ray diffraction and 1–5 studied by NMR spectroscopy [1H, 13C, 29Si, 77Se, 117Sn, 119Sn, 125Te and (by the insensitive nuclei enhanced by polarization transfer technique)15N].Keywords
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