Heterobimetallic Pd–K carbene complexes via one-electron reductions of palladium radical carbenes†
Abstract
Heterobimetallic Pd–K carbenes featuring Pd–Ccarbene–K moieties were synthesized via an unprecedented sequential substitution/reduction reaction from a radical precursor, [{PC˙(sp2)P}tBuPdI] ([PC(sp2)P]tBu = bis[2-(di-iso-propylphosphino)-4-tert-butylphenyl]methylene). Polymeric structures were observed in the solid state for the heterobimetallic compounds that can be interrupted in the presence of a donor solvent.