Catenated and spirocyclic polychalcogenides from potassium carbonate and elemental chalcogens.

Phil Liebing,Marcel Kühling,Claudia Swanson,Martin Feneberg,Liane Hilfert,Rüdiger Goldhahn,Tristram Chivers,Frank T Edelmann

CHEMICAL COMMUNICATIONS（2019）

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摘要

The reaction of potassium carbonate with elemental sulfur or selenium in acetone in the presence of [PPN]Cl (PPN = (Ph3P)(2)N) produces catena-[S-12](2-), the longest structurally characterised polysulfide dianion, or spiro-[Se-11](2-) as ion-separated [PPN](+) salts.

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