S. Cui, Yu‐Long Zhao, Jingping Zhang
Nov 1, 2009
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Journal
Synthetic Metals
Abstract
Abstract Pyridine-2,6-dicarboxylic acid reacts as the first ligand (L1) under hydrothermal conditions with different metal ions such as Co II , Ni II , and Cu II to form two 1D polymeric complexes [M(L1)(L2) 2 ·H 2 O] n (M = Co 2+ or Ni 2+ ) and a tetranuclear cluster with formula [Cu 4 (L2) 4 (L1) 4 ]·2H 2 O in the presence of 5-(4-bromophenyl)-2,4′-bipyridine as the second ligand (L2). Intramolecular interactions were observed in the three compounds, being antiferromagnetic in both cobalt and nickel 1D coordination polymers and ferromagnetic interaction in the tetranuclear copper cluster.