单核Ni(II)配合物的合成、晶体结构与性质研究

hiazole-2,4-dicarboxylic acid is a flexible chelating ligand with a rich coordination sites, which can coordinate with transition or rare earth metal ions in different coordination modes to form different structures. Meanwhile, thiazole-2,4-dicarboxylic acid contains two chiral centers, which is favorable to chiral complexes. And there are a large number of related reports. In this paper, we designed and synthesized a new chiral ligand thiazol-2-(4-carboxyphenyl)-4-carboxylic acid, and solvothermal reactions of thiazol-2-(4-carboxyphenyl)-4-carboxylic acid and Ni(Ⅱ) afforded a chiral mononuclear six-coordinated complex. Ferroelectric studies of the complex were also conducted. The structure was characterized by IR spectroscopy, elemental and thermal gravimetric analyses as well as X-ray analyses. X-ray single-crystal analysis revealed the crystal of the complex is of monoclinic, each nickel in the complex exhibits an octahedral geometry, and the two-dimensional network was constructed by intermolecular hydrogen bonds.