Abstract

It was shown for the first time that the products of the reaction of biphenylene-4,4′-bis(methylphosphinic acid), 4,4′-bipyridine, and M(NO3)2 (M = Ni, Co) under the solvothermal synthesis conditions are complex salts with the phosphinate anion instead of the expected coordination polymers. The coordination environment of the nickel ion contains, along with water molecules, only one nitrogen atom of the 4,4′-bipyridine molecule, whereas the environment of cobalt includes two nitrogen atoms of two 4,4′-bipyridine molecules.

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