基于芳香基咪唑二羧酸的钴(Ⅱ)配聚物的合成及性能

摘要

本文通过2-(对叔丁基)苯基咪唑二羧酸(H3BuPhIDC)与钴离子的水热反应制备了一个一维的配聚物[Co(μ2-HBuPhIDC)(H2O)2]n(1).通过红外光谱、元素分析以及X-ray单晶衍射测试了其分子结构.通过结构分析发现:咪唑羧酸配体以μ2-kN,O:kN',O'的模式与Co离子配位.研究了配合物1的热稳定性以及在2-300 K范围内的变温磁化率.结果表明:在1中,钴离子间存在着弱的反铁磁偶合作用,理论拟合值为J=-1.95 cm-1,g=2.08.%By the reaction of 2-(p-butylphenyl)-1H-imidazole-4,5-dicarboxylic acid (H3 BuPhIDC) with Co(Ⅱ) ion,one 1D coordination polymer,[Co(μ2-HBuPhlDC) (H2O) 2] n(1) has been synthesized under hydrothermal condition.Its molecular structure has been characterized by single-crystal X-ray diffraction,elemental analysis and IR spectrum.Furthermore,the existence of intermolecular hydrogen bonds and/or π…π stacking interactions between the aromatic groups supplies the additional stabilization for the solid-state supramolecular structure of 1.The thermal and mgnetic properties of 1 have been investigated as well.