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.