新型笼状杂多钼酸盐纳米团簇的设计，组装及其性能研究

项目名称： 新型笼状杂多钼酸盐纳米团簇的设计，组装及其性能研究

项目编号： No.21301194

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 数理科学和化学

项目作者： 颜军

作者单位： 中南大学

项目金额： 25万元

中文摘要： 杂多酸因其独特性质与应用已经引起国际广泛关注。本项目通过制备包裹活泼阴离子模板的笼状多核钼氧酸盐，展开新型纳米级多酸分子合成与性质研究。课题着眼于纳米级杂多钼酸分子的良好电子与质子传输与储备能力，拟利用阳离子引导合成策略，用氧化钼骨架网络对选定的活泼阴离子模板的进行包裹，进而分离出类Dawson型笼状杂钼氧酸类分子，并探讨研究阳离子对纳米级杂钼多酸自组装过程的影响方式。通过分离一系列含不同模板下的同类型笼状化合物，探索新的多酸合成手段的同时，理解阴离子模板对相应多酸分子骨架的性质特别是氧化还原性质与酸性的影响，深化人们对多酸性质与结构关联了解的同时开始建立内部模板对特定纳米级杂多酸氧化还原性质的联系，努力开拓出含多活性组分的复合化合物新体系，进而达到进行面向新型多酸类功能分子材料的设计与合成的目的。

中文关键词： 多酸；自组装；氧化还原化学；电子结构；

英文摘要： Heteropolyoxometalates have attracted great attention due to their remarkable properties，but also to their intriguing applications. This scheme aims to exploring the study of new type of heteropolyoxomolybdates(HPOMos) by embedding the active anionic template inside of the cage-type cluster. This project focuses on the noble electron and proton transfer and storage ability of nano-HPOMo, and tries to embed the selected anionic template into the molybdate oxide network by using the cation-controlling strategy, therefore the cage-type HPOMos, such as Dawson type cluster, can be synthesized and isolated. Also, the consequence of introducing different cations during the self-assembly process of nano-HPOMos will be discussed. By isolating a series of cage-type cluster with template diversification, the methodology of polyoxometalate synthesis can be further explored. Further, how the anionic template modifies the properties of whole cluster, epically the redox property could be investigated, and the linkage between structures and properties can be better understood. Furthermore, the preliminary connection will be built between the template and redox properties of target clusters, which would benefit the expanding new complex polyoxometalate system with multi-able active components, and targeting the design and synthe

英文关键词： Polyoxometalates；self-assembly；redox chemistry；electronic structure；