3d-4f异金属发光-磁性双功能配合物的合成与性能研究

Bifunctional molecular materials exhibiting luminescent and magnetic properties have extensive application in information storage and transportation, luminescence sensor, fluorescence immunoassay, clinical diagnosis and so on. This project is to construct novel 3d-4f heterometallic bifunctional complex molecular materials with luminescent and magnetic properties by using new amine-phenol multidentae ligands and metal ions including 3d and 4f ions. The structures, luminescence and magnetism will be deeply investigated on the thesis of the determination of molecular structure, fluorescence spectra and magnetic susceptibility. Through experiments and theoretical calculation, it is explored that the microscopic mechanisms of 3d metal ions influence on the luminescence and magnetism of 3d-4f heterometallic complexes. Through the change of ligands and reaction conditions, the regulation of structures and properties of 3d-4f heterometallic complexes will be realized, and thus the structure-activity relationship of target complexes will be further studied. The project is to obtain a series of 3d-4f heterometallic bifunctional complexes with luminescent and magnetic properties. The relationship between the structures and functionality would be investigated, and the new methods toward the preparation of 3d-4f heterometallic bifunctional complexes with luminescent and magnetic properties would also be obtained. The project will enrich the contents of 3d-4f cluster chemistry, molecular magnetism and luminescence and provide the theoretical and experimental basis of the preparation of multifunctional 3d-4f heterometallic complex molecular materials.

发光-磁性双功能分子材料在信息存储与传输、发光传感器、荧光免疫分析和临床诊断等领域具有广泛的应用。本项目拟选用新型胺酚多齿配体与3d金属离子和4f镧系离子配位反应，构筑结构新颖的3d-4f异金属发光-磁性双功能配合物分子材料。通过分子晶体结构、荧光光谱和磁性的测定，深入研究3d-4f异金属配合物的结构、发光和磁性能，结合实验和理论计算，探索3d金属离子影响3d-4f异金属配合物发光和磁性的微观机理。通过改变配体结构和反应条件，实现对3d-4f异金属配合物结构和性能的调控，研究目标配合物的构效关系。项目预期可获得系列发光和磁性能优异的3d-4f异金属配合物，阐明其结构与功能的关系，探索制备3d-4f异金属发光-磁性双功能配合物分子材料的新方法。本项目研究丰富了3d-4f原子簇化学、分子磁学、分子发光等领域的内容，为3d-4f异金属发光-磁性双功能配合物分子材料的制备提供理论和实验基础。

磁性-发光配合物是一种同时具有磁性和发光性质的新型多功能材料，在高密度信息存储、自旋电子器件、荧光传感和光电催化等多个领域具有潜在的应用前景。在本项目的研究中，设计合成了多个氨酚配体或多羧酸配体作为构筑基块，与稀土金属离子和3d过渡金属离子进行反应组装构筑了系列新的具有磁性、发光和质子传导性能的多功能配合物材料，探索了影响多功能配合物组装的因素，实现了对化合物结构和性能的调控。此外，我们还对这些功能配合物的磁性、发光、光学活性、质子传导性能及构效关系进行了深入研究。项目研究在多功能分子基磁性材料、发光材料和金属有机框架材料的合成、调控、结构及其性能研究方面取得了系列创新成果。相关成果已在Journal of Materials Chemistry C, Inorganic Chemistry, Chemistry of Materials, Dalton Transactions和CrystEngComm等国际重要学术刊物上发表。发表SCI论文30篇，其中第一作者或通讯作者论文19篇；应邀在2021年中国晶体学会第八届学术年会、2020年“高丰度稀土高值化平衡利用”国际高峰论坛等学术会议上做大会报告，受到国内外同行的关注和好评。