New routes to pentafluorophenyl derivatives with germanium-chalcogen bonds |
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Authors: | MN Bochkarev LP Maiorova NS Vyazankin GA Razuvaev |
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Institution: | Institute of Chemistry, Academy of Sciences, Gorky U.S.S.R. |
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Abstract: | Tris(pentafluorophenyl)germanethiol, (C6F5)3GeSH (Ia), was obtained in good yield by heating the tris(pentafluorophenyl)germane with elemental sulphur or by the exchange between Et3GeSH and (C6F5)3GeBr. The reaction between sulphur and (C6F5)2GeH2 or C6F5GeH3 gives heterocyclic products with chains of alternating germanium and sulphur atoms in the cycles. The compounds (C6F5)3Ge]2X (X = S, Se) were prepared by exchange reaction of (Et3Ge)2X with tris(pentafluorophenyl)germanium bromide and by reaction of chalcogens (S8, Se8) with hexakis(pentafluorophenyl)digermane. Ia reacts with diethylmercury affording (C6F5)3GeSHgEt. Insertion of elemental sulphur into the GeHg bond of bistris(pentafluorophenyl)germyl]mercury led to the thermally stable (C6F5)3GeSHgGe(C6F5)3. |
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