Two N-donor Auxiliary Ligands Mediated Zn(Ⅱ) Coordination Polymers Incorporating 5-Nitro-1,2,3-benzenetricarboxylate Ligand: Syntheses, Crystal Structures, and Luminescent Properties

Two N-donor auxiliary ligands mediated Zn（Ⅱ） coordination polymers, namely, {[Zn（Hnbta）-（bimm）]（3H;O）};（1） and {[Zn;（nbta）(pyim)（H;O）]（2H;O）};（2）(H;nbta = 5-nitro-1,2,3-benzenetricarboxylic acid, bimm = bis（imidazol-1-yl）methane and pyim = N-（4-pyridylmethyl）imidazole), have been prepared by the hydrothermal reaction. Their structures were determined by single-crystal X-ray diffraction analysis, elemental analyses and infrared spectra. Compound 1 possesses a one-dimensional（1D） chain structure, while compound 2 features a two-dimensional（2D） network. In addition, they both exhibit high thermal stabilities and photoluminescent properties in the solid, and can be explored as potential luminescent materials.