Reactions of tetrasulphur tetranitride with halides. Part VI. The preparation and structure of cyclopentathiazenium pentachloro(phosphoryl chloride)stannate(IV)

Abstract

Tetrasulphur tetranitride, sulphuryl chloride, and tin tetrachloride react in phosphoryl chloride to give S₄N₄·POCl₃·SnCl₄ and the new cyclopentathiazenium salt [S₅N₅][SnCl₅(OPCl₃)]. X-Ray diffraction studies of the latter show that the cation has an azulene-type structure as found in [S₅N₅][S₃N₃O₄]. The reactions of S₃N₂Cl₂, (SNCl)₃, S₄N₃Cl, S₄N₄, and (S₄N₄)₂SnCl₄ with POCl₃ have also been studied.