稀土多核配合物的结构构筑及性能研究中文摘要稀土配位化学是无机化学的一个重要分支学科，其在催化、识别响应、发光、磁性等方面的应用研究已经取得长足的进展。相对于单核稀土配合物的研究，稀土多核配合物的结构复杂，自组装方式及性能研究仍需要进一步的认识和探索。因此，基于已有的研究，我们设计了不同的桥联配体，使其与稀土离子自组装形成了一系列新型稀土多核配合物，通过探究这些稀土多核配合物在结构构筑、识别性能、催化性能等方面的应用，为更深入认识稀土多核配合物的结构构筑模式和开发稀土配合物的多种功能应用提供必要的实验数据参考。本文共分为以下五部分：一、简要介绍了稀土多核配位化学研究背景，从稀土多核配合物的结构构筑方法、发光识别、手性识别以及催化应用等方面的研究进展进行了简要综述。二、以L缬氨酸甲酯盐酸盐为原料、乙氧基水杨醛为末端基，合成了一个新型手性配体，并与稀土盐自组装形成了一系列手性四核四螺旋配合物。通过制备多核稀土配合物的晶体和X-射线单晶衍射分析，重点研究了这些稀土多核配合物的结构特点，实现了配体手性通过稀土离子自组装向多核配合物高层次的传递，对配体设计及构筑形成手性稀土配合物有一定的参考意义。三、通过选择稀土离子G+与手性配体自组装形成的稀土四核四螺旋配合物，探究了该多核稀土配合物在催化环氧化物环加成生成环碳酸酯方面的应用，发现此类稀土配合物催化体系具有用量少、催化高效以及催化底物应用范围广等特点。四、通过选择稀土离子Yb3+与手性配体自组装形成的稀土四核四螺旋配合物，探索研究了配合物在甲醇溶液中对L-酒石酸的识别响应，发现可以利用紫外信号、近红外发光信号和圆二色光谱信号从多种检测物中特异性识别L-酒石酸的多信号响应检测方法。这是稀土手性多核配合物在L-酒石酸识别方面的首次应用，对设计合成有效的手性配合物用于检测识别生物相关小分子有一定的指导意义。五、以二硫键为功能连接基团、乙氧基水杨醛为末端基，合成了一个柔性桥联配体，并与稀土盐离子Yb3+自组装形成了一个双核双螺旋配合物。通过稀土配合物的晶体结构分析，研究了这些稀土多核配合物的结构特点。通过其近红外发光研究，探索了配合物在近红外发光复合薄膜材料中的应用。关键词：稀土多核配合物，识别，手性，近红外发光刑除啦啦啦CONSTRUCTION AND APPLICATION OFMULTINUCLEAR LANTHANIDE COMPLEXESAbstractCoordination chemistry of lanthanide is a crucial branch of inorganic chemistry.A lot of application research in catalysis,sensing,luminescence,and magnetism hasmade considerable progress.Compared with the study of single-nuclear lanthanidecomplexes,structure construction and application research of multinuclearlanthanide complexes still needs further understanding and exploration.Therefore,based on the existing research,we have further designed different bridged ligandsand lanthanide ions to self-assembly a new multinuclear lanthanide complex.So thatwe can explore its applications in structural construction,sensing and catalyticperformance.The coordination mode of multinuclear complexes and thedevelopment of various functional applications of lanthanide complexes provide thenecessary experimental data reference.This article is divided into the following fivechapters:Chapter 1.The research background of multinuclear lanthanide coordinationchemistry was briefly introduced.And then the research progress and the applicationof the multinuclear lanthanide complex about luminescence sensing,chiralrecognition,and catalysis was briefly reviewed.Chapter 2.A novel chiral ligand has ethoxy salicylic aldehyde as the terminalgroup was designed and synthesized using L-valine methyl ester hydrochloride asthe raw material.A series of chiral tetranuclear four helix complex wasself-assembled with lanthanide ions.Through the preparation of crystals and X-raysingle crystal diffraction analysis of such multinuclear lanthanide complexes,thestructural characteristics of these lanthanide multinuclear complexes were focusedon.We successfully achieved effective transfer of chirality from ligand to highercomplex level by self-assembly of lanthanide ions.It has certain referencesignificance for the formation of chiral lanthanide complexes through ligand designand self-assembly in the future.