Hydrothermal Synthesis, Structure, and Magnetic Properties of a Three‐dimensional Polymeric Ni II Complex, [Ni(bpp)(NIP)(H 2 O)] n (bpp = 1,3‐di(4‐pyridyl)propane, NIP = 5‐nitroisophthalate)

A three‐dimensional polymeric Ni II complex, [Ni(bpp)(NIP)(H 2 O)] n (bpp = 1,3‐di(4‐pyridyl)propane and NIP = 5‐nitroisophthalate), has been synthesized and characterized. The coordination number of the nickel atom is six (NiN 2 O 4 ) and the coordination environment around the Ni II atom may be described as a distorted octahedron in which two nitrogen atoms of “bpp” ligand occupy the cis positions. The effective magnetic moment for this complex indicate that the interactions between two Ni II atoms through the effective exchange media are antiferromagnetic. Self‐assembly of these compounds in the solid state via π–π‐stacking interactions is discussed.