兼具超大孔道和磁、光性能的过渡金属/稀土-锗磷酸盐的合成及结构化学规律性研究

项目名称： 兼具超大孔道和磁、光性能的过渡金属/稀土-锗磷酸盐的合成及结构化学规律性研究

项目编号： No.21201144

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 无机化学

项目作者： 黄雅熙

作者单位： 厦门大学

项目金额： 25万元

中文摘要： 微孔材料因具有丰富的结构化学特征及其在催化、吸附、分离等多方面的广泛应用而倍受关注。本项目拟利用锗酸盐的大孔道结构、磷酸盐与金属的亲和性、稀土/过渡金属的磁性和发光性这三者的特性，创新合成兼具开放网络结构和特异磁、光性能的新型金属锗磷酸盐，探索并总结其合成规律、结构化学规律性及结构与性能之间的内在联系。采用水（溶剂）热法及低温熔盐法合成新型金属锗磷酸盐，重点研究锗酸盐与磷酸盐有机结合形成的锗磷聚阴离子簇所具有的结构多样性及其合成条件，探索稀土金属、过渡金属与锗磷聚阴离子簇间的配位关系及形成结构多样性的内在原因，探索不同合成条件和组分对产物结构的影响，分析化合物的晶体结构及其磁性或光性能来阐明锗酸盐-磷酸盐-金属的相互作用机制，揭示组分-结构-性能之间的内在本质联系，为定向设计与合成锗磷酸盐微孔材料并使之在催化、吸附、磁光电等方面的应用奠定基础。

中文关键词： 锗磷酸盐；多孔材料；氟取代；水（溶剂）热合成；构效关系

英文摘要： Microporous materials attract much attention mainly due to their diverse structures and broad applications in various fields as catalysts, absorbents, and ion-exchanger. This proposal will systematically investigate on the key issues in the development of functional rare earth/transition metal-germanophosphates with the combination of extra-large-pore channel and interesting magnetic and optical properties. The system is chosen atrributing to the structure diversities of germanate, the high affinity between transition metal and phosphorus, as well as the magnetic and optical properties of transition metals and rare earth metals. The work comprises following parts: 1) Syntheses of transition metal/ rare earth germanophosphates by applying hydro-/solvothermal or low temperature molten salts methods; 2) Resolution of the single crystal structures, study on the structure motifs of germanophosphate anionic partial structure and metal polyhedra, characterization on the magnetic and optical behavior; 3) Understanding the interaction mechanism among the metal, germanium, and phosphorus, and thus to disclose the relationship between the crystal structure and the physical performance. The results of this research will shed light on the development of the functional microporous rare earth/transition metal germanophosphate

英文关键词： Germanophosphate；Porous materials；Fluoride substituted；Hydro-/solvo-thermal synthesis；Relationship between structure and performance