A N-heterocyclic tetracarbene Pd(ii) moiety containing a Pd(ii)–Pb(ii) bimetallic MOF for three-component cyclotrimerization via benzyne†
Abstract
A novel Pd(II)–Pb(II) bimetallic metal–organic framework Pd(II)–Pb(II)–MOF (B) which contains an N-heterocyclic tetracarbene Pd(II) moiety was synthesized based on a chelating N-heterocyclic dicarbene Pd(II)–NHDC ligand (A) under solvothermal conditions. It can be a highly active heterogeneous catalyst for three-component cyclotrimerization via benzyne species.