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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。
In this paper, a one-dimensional polymer [Co (μ2-HBuPhIDC) (H2O) 2] n (1) was prepared by the hydrothermal reaction of 2- (pt-butyl) phenylimidazole dicarboxylic acid (H3BuPhIDC) ). Its molecular structure was tested by infrared spectroscopy, elemental analysis and X-ray single crystal diffraction. Structural analysis shows that imidazole carboxylic acid ligands coordinate with Co ions in the mode of μ2-kN, O: kN ’, O’. The thermal stability of complex 1 and the temperature-dependent magnetic susceptibility in the range of 2-300 K were investigated. The results show that there is a weak antiferromagnetic coupling between cobalt ions in 1, the theoretical fitting value is J = -1.95 cm-1, g = 2.08.