Metallosupramolecular silver(I) assemblies based on pyrazine and related ligands

Assemblies obtained by reactions of silver(I) salts with ligands that contain a pyrazine subunit are surveyed. A diverse range of discrete and one-, two- and three-dimensional polymeric species are described. Many complexes of pyrazine itself have been reported, as have compounds derived from substituted pyrazines and benzofused ligands, such as phenazine. Ligands that contain more than one pyrazine ring are also covered and these tend to lead to assemblies of higher dimensionality.