Pentaorganyle des antimons

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Abstract

Some new spirocycles of pentacoordinated antimony are described. By means of the temperature-dependent proton-resonance spectra of the antimony penta- organyls (XXXV) and (XXXVI) conclusions concerning the dynamic stereochemistry of these derivatives are possible. The cyclic stibines, essential for the synthesis of the pentavalent antimony derivatives, are prepared by a new method with the aid of bidentate cadmium organyls.

Zusammenfassung

Einige neue Spirocyclen des pentakoordinierten Antimons werden be- schrieben. Mittels der temperaturabhängigen Protonenresonanzspektren der Anti- monpentaorganyle (XXXV) und (XXXVI) sind Aussagen zur dynamischen Stereoche- mie dieser Derirate möglich. Die zur Synthese der pentavalenten Derivate notwendi- gen cyclischen Stibine wurden auf einem neuen Weg über zweizähnige Cadmium- organyle hergestellt.

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