Synthese und Struktur von Hexakis(trimethylsilyloxy)triarsazen

Michael Baier, Peter Bissinger, Hubert Schmidbaur

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Abstract

Synthesis and Structure of Hexakis(trimethylsilyloxy)triarsazene Hexakis(trimethylsilyloxy)triarsa(V)azene [(Me3SiO)2AsN]3 (1) has been prepared from arsenic acid H3AsO4 and hexamethyldisilazane (Me3Si)2NH. According to an X‐ray crystal‐structure determination 1 features a slightly puckered six‐membered As3N3 ring. The formation of 1 proceeds with evolution of ammonia via tris(trimethylsilyl)orthoarsenate (Me3SiO)3AsO (2) as an intermediate, which could be isolated as a by‐product. The reaction of 2 with hexamethyldisilazane also gives 1 in high yields. The influence of temperature, solvent and concentration of reactants on product formation has been investigated, and side reactions are discussed.

Original languageGerman
Pages (from-to)351-354
Number of pages4
JournalChemische Berichte
Volume126
Issue number2
DOIs
StatePublished - Feb 1993
Externally publishedYes

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