Chelating alkoxy-N-heterocyclic carbene complexes of silver and copper.

Incorporation of an alkoxide functional group into an N-heterocyclic carbene (NHC) ligand allows the synthesis of the first anionic NHC chelating ligands, which react to give the first neutral, molecular silver(I) alkoxide carbene complex, and a copper(I) derivative containing the first nonmacrocyclic, square planar Cu(I) centres.

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