Heterometathesis of diphosphanes (R₂P–PR₂) with dichalcogenides (R′E–ER′, E = O, S, Se, Te)

The reactions of R2P–PR2 with R′E–ER′ (where E = Se, S, O, Te) to give R2P–ER′ have been explored experimentally and computationally. 31P NMR evidence suggests that Mo(0) complexes of Ph2P–SePh feature P- and Se- linkage isomers.