Zum nukleophilen Abbau von Tris(pentasulfido)platinat(IV), [Pt(S5)3]2−, und Bis(pentasulfido)platinat(II),[Pt(S5)2]2− |
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| Authors: | M Schmidt G G Hoffmann |
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| Abstract: | On the Nucleophilic Degradation of Tris(pentasulfido)platinum(IV), Pt(S5)3]2?, and Bis(pentasulfido)platinum(II), Pt(S5)2]2? The behaviour of Pt(S5)3]2?, ( I ), towards sulfite, arsenite, sulfide, hydroxide, and triphenylphosphine has been studied qualitatively and quantitatively. With stoichiometric amounts of nucleophile one ring is degraded; the reaction product Pt(S5)2]2?, ( II ), can be isolated. With excess of nucleophile all sulfur atoms are taken off from the platinum; with triphenylphosphine, however, (PPh3)2PtS4, ( III ), is formed. A mechanistic interpretation of the course of the reaction is given and supported by kinetic studies. |
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