Structural and magnetic properties of metal complexes constructed by pyridine-2,6-dicarboxylate and 5-(4-bromophenyl)-2,4′-bipyridine

• Published in: Synthetic metals 2009-11, Vol.159 (21), p.2191-2193
• Main Authors: Cui, Shuxin, Zhao, Yulong, Zhang, Jingping, Liu, Qun, Zhang, Yan
• Format: Article
• Language: English
• Subjects: 1D chain; Applied sciences; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Crystal structure; Exact sciences and technology; Exchange and superexchange interactions; Inorganic and organomineral polymers; Inorganic compounds; Magnetic properties and materials; Magnetic property; Magnetically ordered materials: other intrinsic properties; Metal complexes; Physicochemistry of polymers; Physics; Preparation; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Tetranuclear cluster
• ISSN: 0379-6779; 1879-3290
• DOI: 10.1016/j.synthmet.2009.07.056

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 2O] n (M = Co 2+ or Ni 2+) and a tetranuclear cluster with formula [Cu 4(L2) 4(L1) 4]·2H 2O 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.