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铅基配合物的合成及其“网状”氢键结构
  

摘要:以环丙沙星(cf)为配体,醋酸铅为金属盐,水为溶剂,通过常温挥发法合成一种新的含铅配合物。其结构经元素分析和X-射线单晶衍射进行表征。结果表明:该晶体结构单元为[Pb(cf)·H2O]n (PbL),属于三斜晶系P-1空间群。该结构中Pb()与环丙沙星配位方式较独特,形成双核环状结构,相邻环通过大量氢键联结成三维超分子。该结构中存在一个氢键“网状”结构,大大加强了该结构的稳定性。

关键词:铅基配合物;环丙沙星;晶体结构;氢键

AbstractA new coordination polymer containing lead was synthesized by room temperature volatilization with ciprofloxacin (cf) as ligand, lead acetate as metal salt and water as solvent. The structure was characterized by elemental analysis and X-ray single crystal diffraction. The results show that the crystal structure unit is [Pb (cf) · H2O] n (PbL), which belongs to triclinic P-1 space group. In this structure, the coordination mode of Pb () with ciprofloxacin is unique, forming a binuclear ring structure, and the adjacent rings are connected to form a three-dimensional supramolecule through a large number of hydrogen bonds. There is a hydrogen bond "network" structure in the structure, which greatly enhances the stability of the structure.

Keywords: lead complex; Ciprofloxacin; crystal structure; hydrogen bond



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