【摘要】 由分层法合成了镉化合物[Cd（5-OHIP）]·H₂S5,（1）（5-OHIP=5-羟基间苯二甲酸，S5=1,5-2-甲基咪唑基戊烷），并对其进行了IR及X-射线单晶衍射法表征。晶体结构表明：配合物1属于单斜晶系，Cc空间群。配合物1是由桥联配体5-羟基间苯二甲酸连接成二维（4,4）拓扑结构，该二维层被质子化H₂S5与5-羟基间苯二甲酸氢键拓展成三维超分子结构。测定了配合物1在多种溶剂（包括DMF、甲醇、乙醇、丙酮和乙腈）中的荧光强度变化。实验结果显示，丙酮对配合物1具有显著的荧光猝灭效应。进一步考察了不同金属阳离子对配合物1荧光强度的影响，发现配合物1对Fe³⁺离子表现出高度选择性和灵敏的荧光响应，表明其在Fe³⁺检测方面具有潜在应用价值。更多还原

【Abstract】 A cadmium compound [Cd（5-OHIP）]·H₂S5（1）（5-OHIP = 5-hydroxyisophthalic acid） was synthesized using a layered method and characterized by IR spectroscopy and single-crystal X-ray diffraction. Structural analysis reveals that complex 1 crystallizes in the monoclinic system with the Cc space group. The structure is formed by bridging ligands of 5-hydroxyisophthalic acid, constructing a two-dimensional（4,4） topological network. This 2D layer is further extended into a three-dimensional supramolecular architecture through hydrogen bonding between H₂S5 and 5-hydroxyisophthalic acid. The fluorescence intensity of complex 1 was measured in various solvents, including DMF, methanol, ethanol, acetone, and acetonitrile. Results indicate that acetone exhibits a significant fluorescence quenching effect on complex 1. Furthermore, the influence of different metal cations on the fluorescence intensity of complex 1 was also investigated, demonstrating that complex 1 exhibits high selectivity and sensitivity toward Fe³⁺ions, suggesting its potential application for Fe³⁺detection.更多还原