A one-dimensional copper coordination polymer containing both dicyanamide and 1,10-phenanthroline ligands

The crystal structure of catena-poly[[[acetato (1,10-phenanthroline-kappa(2)N,N')copper (II)]-mu-dicyanamido-kappa(2)N(1):N-5] trihydrate], {[Cu(C2H3O2)(C2N3)(C12H8N2)].3H(2)O}(n), consists of a zigzag chain formed by the polymer [Cu(CH3COO)(dca)-(phen)], (phen is 1,10-phenanthroline and dca is dicyanamide), with three water molecules per repeat unit of the polymer. The Cull atom has a slightly distorted square-pyramidal coordination environment consisting of two N atoms of the phen ligand, two nitrite N atoms of different dca ligands, one of them axial, and one O atom of the acetate anion. The compound forms a one-dimensional chain using dca as an end-to-end bridging ligand. Non-covalent interactions, pi-pi stacking and hydrogen bonding mediate the bundling of the polymer chains into a three-dimensional structure, with the water molecules playing an important role in the hydrogen bonding.