Synthesis, Structures, and Magnetism of Four One-Dimensional Complexes Using [Ni(CN)] and Macrocyclic Metal Complexes.

Four one-dimensional complexes, denoted as [NiL][Ni(CN)] (), [CuL][Ni(CN)] (), [NiL][Ni(CN)]·2HO (), and [CuL][Ni(CN)]·2HO () (L = 1,8-dimethyl-1,3,6,8,10,13-hexaaza-cyclotetradecane; L = 1,8-dipropyl-1,3,6,8,10,13-hexaazacyclotetradecane) were synthesized by reacting nickel/copper macrocyclic complexes with K[Ni(CN)]. Subsequently, the synthesized complexes were characterized using elemental analysis, infrared spectroscopy analysis, thermogravimetric analysis, and X-ray powder diffraction. Single-crystal structure analysis revealed that the Ni(II)/Cu(II) atoms were coordinated by two nitrogen atoms from [Ni(CN)] with four nitrogen atoms from a macrocyclic ligand, forming a six-coordinated octahedral coordination geometry. Nickel/copper macrocyclic complexes were bridged by [Ni(CN)] to construct one-dimensional chain structures in -. The characterization results showed that the four complexes obeyed the Curie-Weiss law with a weak antiferromagnetic exchange coupling.