Thermal decomposition of binary sulphur–nitrogen anions; preparation and X-ray crystal structure of (Ph3P)2N+ S4N–

Abstract

The thermal decomposition of (Ph₃P)₂N⁺S₄N₅^– in acetonitrile leads, sequentially, to the corresponding salt of the S₃N₃^– and S₄N^– anions; an X-ray crystallographic analysis of (Ph₃P)₂N⁺ S₄N^– shown that the anion is a planar, cis–trans chain with nitrogen in the middle of four sulphur atoms.