A novel coordination polymer with dicyanamide ligand: multi-dimensional architecture stabilized by hydrogen bonding

A novel dicyanamide (dca) complex, [Cu(pn)(dca)₂]_n (pn=1,2-diaminopropane), was synthesized and characterized. X-ray diffraction analysis reveals that the title complex crystallizes in the monoclinic space group C2/c with β=96.662(6)°, Z=8, and R₁=0.0476, wR₂=0.1094. The complex exhibits one-dimensional zigzag chain structure constructed by μ_1,5-dca bridges. The coordination geometry around the copper atom was a distorted square-pyramid. The spectroscopic and magnetic properties have also been discussed.