Coordination polymers with 4,4′-bipyrimidine. Using a combination of endo- and exodentate donors to build a one-dimensional Ag(i) ladder and a heterometallic Co(ii)Ag(i)2 network

Abstract

The ligand 4,4′-bipyrimidine combines a chelating bipyridine group and two terminal donor atoms into a single molecule; chelation to a single Ag(I) centre forms a square planar complex which can then form an extended planar ladder-type polymer by linking through linear Ag(I) centres whereas bis-coordination to an octahedral Co(II) centre yields a building block with four external donor nitrogen atoms which can coordinate to two distinct Ag(I) ions to form a heterometallic 2D net.