Polymeric arrangements of P–Se anions and a first insight into their reactivity†
Abstract
The reactions of the P/Se-precursor Woollins' reagent [PhP(Se)µ-Se]2 with alkali-metal salts offer new perspectives for the synthesis of metal aggregates containing P–Se anions. Depending on the alkali-metal thiolates polymeric arrangements of [PhPSe3]2− or [PhPSe2Se–SeSe2PPh]2− dianions are observed and the mechanisms of their formation described.