1D chain structures of M(dca)2(phen)(H2O)·MeOH, M=Mn, Fe, Co, Ni, Zn, Cd, dca=dicyanamide, N(CN)2−, phen=4,7-phenanthroline

The isomorphous structures of M(dca)2(phen)(H2O)·MeOH, M=Mn, Fe, Co, Ni, Zn and Cd, dca=dicyanamide, N(CN)2−, phen=4,7-phenanthroline contain 1D coordination polymer chains in which each metal atom is connected to two others by two pairs of μ1,5 bridging dca anions, which coordinate in the equatorial positions. The axial positions of the metal are occupied by monodentate water and phen ligands. The chains are further linked into an overall 3D network by hydrogen bonding interactions between the water ligands, the uncoordinated nitrogen atoms of the phen ligands, and the intercalated methanol molecules.