基于芳香基咪唑二羧酸的钴(Ⅱ)配聚物的合成及性能

Synthesis and properties of a 2-butylphenyl imidazole dicarboxylate-based cobalt(II) coordination polymer

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-hutylphenyl） -1 H-imidazole-4,5 -dicarboxylic acid （ H3 BuPhIDC ） with Co （ II ） ion, one 1 D coordi- nation polymer, [ Co （μL2-HBuPhIDC） （ H2 O） 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 intermolec- ular hydrogen bonds and/or 7π-π stacking interactions between the aromatic groups supplies the additional stabilization for the sol- id-state supramolecular structure of 1： The thermal and mgnetic properties of 1 have been investigated as well.