On the formation of unusual complex salts in the ternary system M(NO3)2 (M = Ni, Co)-4,4′-bipyridine-biphenylene-4,4′-bis(methylphosphinic acid)
作者:A. V. Krayushkina、V. A. Milyukov、O. G. Sinyashin、P. Lönnecke、E. Hey-Hawkins
DOI:10.1007/s11172-014-0640-5
日期:2014.7
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.
首次表明,在溶剂热合成条件下,四苯并吡啶-4,4′-双(甲基磷酸)与M(NO3)2(M = Ni, Co)反应生成的产物是复杂盐,而不是预期中的配位聚合物。这些产物中,镍离子的配位环境只包含水分子和一个4,4′-双吡啶分子的氮原子,而钴的配位环境则包含两个4,4′-双吡啶分子的两个氮原子。