A N-heterocyclic tetracarbene Pd(ii) moiety containing a Pd(ii)–Pb(ii) bimetallic MOF for three-component cyclotrimerization via benzyne.

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. [ABSTRACT FROM AUTHOR]