Heterobimetallic Pd–K carbene complexes <i>via</i> one-electron reductions of palladium radical carbenes

Abstract

Heterobimetallic Pd-K carbenes featuring Pd-C_carbene-K moieties were synthesized <i>via</i> an unprecedented sequential substitution/reduction reaction from a radical precursor, [{PC˙(sp²)P} ^<i>t</i>BuPdI] ([PC(sp²)P] ^<i>t</i>Bu = bis[2-(di-iso-propylphosphino)-4-<i>tert</i>-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.