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 Pub Date : 11/19/2019 00:00:00 , DOI:10.1039/C9CC08347B
Abstract

The reaction of potassium carbonate with elemental sulfur or selenium in acetone in the presence of [PPN]Cl (PPN = (Ph3P)2N) produces catena-[S12]2−, the longest structurally characterised polysulfide dianion, or spiro-[Se11]2− as ion-separated [PPN]+ salts.

Graphical abstract: Catenated and spirocyclic polychalcogenides from potassium carbonate and elemental chalcogens