新型功能铱配合物凝胶体系的构建及其对重金属离子的高灵敏检测和富集

Supramolecular self-assembly through non-covalent interactions is an important means to create new structure and functional materials. The detection and enrichment of heavy metal ion are as the function orientation in this project which is based on supramolecular self-assembly and coordination chemistry theory. The new functional supramolecular gel system based on iridium complexes will be constructed which is subtly combined for low molecule weight gel and iridium complexes with excellent emission performance through the reasonable design of the ligand molecules and chemical modification. The structure and function of the gel system can be regulated via functional design and modification of the ligands as well as the control of self-assembly process. The heavy metal ions in waste water can be detection with high selectivity and sensitivity by gel system of those iridium complexes, at the same time heavy metal ions can also be enriched and treated taking advantage of the quasi solid material characteristics of gel and the coordination effect of the enrichment site. On this basis, the changing rule of non-covalent interaction will be further studied in the self-assembly process of complexes with different structure. The relationship between structure and functionality will be established between gel performance and the configuration of iridium complexes. The relationship among non-covalent interaction, gel structure and function will be revealed in the dynamic process of detection and enrichment of heavy metal ion. The dynamics behavior of the enrichment of heavy metal ions will be explored, and the enrichment model is established. The objective will provide new methods of detection and enrichment process of heavy metal ions of waste water.

超分子自组装是组装基元通过非共价键相互作用自发形成特定结构的过程，是创造新结构和功能材料的重要手段。本项目基于超分子自组装和配位化学原理，以重金属离子的检测和富集为功能导向，通过对配体分子的合理设计和化学修饰，将发光性能优良的铱配合物与小分子凝胶巧妙结合，构建功能铱配合物超分子有机金属凝胶新体系。通过对配体功能化设计和修饰以及自组装过程的调控，实现对凝胶体系结构和功能特性的调控，并应用于废水重金属离子的高选择性、高灵敏性检测，同时利用凝胶材料准固态的特点和富集位点的配位作用实现对重金属离子的富集处理。在此基础上，深入研究不同结构配合物的凝胶因子自组装过程中非共价键作用变化规律，建立铱配合物构型与凝胶性能之间的构效关系，揭示重金属离子检测和富集动态过程中非共价键作用与凝胶结构及功能三者之间的相互关系，探索重金属离子富集动力学行为，建立富集模型。本项目研究将为重金属离子的检测和富集提供新方法。

超分子自组装是组装基元通过非共价键相互作用自发形成特定结构的过程，是创造新结构和功能材料的重要手段。本项目通过合理设计铱配合物和凝胶因子，制备了一系列功能自组装体系。通过铱配合物和凝胶因子间能量转移制备了白光发射的双组份凝胶体系。依据铱配合物与稀土离子之间的配位作用制备了气态酸和气态胺灵敏响应凝胶材料。通过巧妙设计构建了强蓝光发射的凝胶体系，并实现了对2,4,6-三硝基苯酚的灵敏检测和吸附。我们还依据萘酰亚胺衍生物分子内电荷转移的性质制备了萘酰亚胺硼酸酯衍生物自组装体系，实现了对有机胺的灵敏检测。项目按照研究计划进行，已完成了计划内容，同时，项目进展中，结合该领域中国际前沿的发展方向，开展了一些其他探索研究如构建了中间原子调控的超分子自组装的新方法，溶剂调控超分子自组装行为进而调控材料表面润湿性能的新方法等。该项目的实施为构建多功能超分子自组装材料提供新思路、新方法。在Langmuir 、Chemistry an Asian Journal、Physical Chemistry Chemical Physics、Soft Matter等国际SCI期刊上发表13篇，申请国家发明专利3项，获授权1项。