Ferrocene-1,1′-dicarboxylic acid as a building block in supramolecular chemistry: supramolecular structures in one, two and three dimensions

Ferrocene-1,1′-dicarboxylic acid forms adducts with a wide range of organic amines: the structures of nine examples show that most are salts and that hydrogen bonds of O—H...O, O—H...N and N—H...O types can link the components into one-, two- or three-dimensional arrays.