Nd、Sm－氟罗沙星配合物的制备及表征

Preparation and Characterization of Two New Complexes Between Nd or Sm and Fleroxacin

为研究稀土－氟喹诺酮类配合物的结构和性质，合成了Ｎｄ、Ｓｍ－氟罗沙星二种新的配合物。通过元素分析得到配合物的组成，发现由于配体具有两性结构，配体以盐的形式与中心原子配位；利用红外光谱，确证了配体与中心原子之间的键合方式为氟罗沙星中的羟基氧以双齿与中心离子螯合；紫外光谱表明配体与中心原子之间的键合作用较弱；Ｘ射线衍射推证配体和配合物具有不同的晶型，配合物为新化合物，而不是由稀土无机盐与氟罗沙星组成简单加合物。

In order to seek rare earth antitbacterial agent and to study the structure and properties of complexes between rare earth and fleroxacin,two new complexes,Nd(HQ)2Cl3·(H2O)8 and Sm (HQ)2Cl3·(H2O) 8 were prepared and characterized.Their probable structures were determined respectively on the basis of IR spectra.UV spectra suggested that the main chemical bond between central atom and ligand be on ionic bond. X-ray spectra showed that the crystal type of the new complexes was not the crystal type of the ligand.