光功能金属有机骨架材料的制备、性能修饰研究

Photic functional materials have attracted considerable interest in chemistry and materials science because of their widespread applications as functional materials in the fields of optical information storage, molecular switches, and so on. Based on the function direction principle, we will study to synthesize the photic functional metal organic framework materials by using the organic ligands with photoluminescence or photochromism property in this research project. In order to get new metal organic framework materials with perfect optical properties, we will use special organic molecules or functional groups with outstanding optical properties to modify the frameworks, which are constructed by some organic ligands with special active sites. On the base of previous research work, we will be interested in several scientific problems as shown below: the relationship between structure and properties, the optical properties of materials, the fundamental theorem of the property mechanism, the preparation of metal organic framework membrane, and the application in the fields of optical information storage, molecular switches, fluorescence probe, fluorescent chemosensor, biological imaging, and so on. Moreover, we will focus our most concentrated attention on some academic problem, such as single-crystal to single-crystal photochemical structural transformations. If the research project can be successfully carried out, the research results will show the general rule of the synthesis and the relationship between structure and properties of the functional metal organic framework materials. We will produce a series of photic functional metal organic framework materials with widespread applications.

光功能材料在光信息存储、分子开关等领域拥有广泛的应用前景，是近年来化学与材料学学科的研究前沿与热点。基于功能导向原理，本项目旨在通过分子设计，利用光致发光、光致变色有机分子构筑具有光学活性的金属-有机骨架材料。在利用含有活性位点的有机分子制备出光功能金属-有机骨架材料的基础上，通过引入光学性能优异的分子或基团对材料骨架内壁进行进一步修饰，实现金属有机骨架材料的功能化及性能提升。在合成工作基础上，本项目将关注于光功能金属-有机骨架材料的合成与性能规律、光功能特性、材料性能理论机理、膜材料制备及材料在信息存储、分子开关、荧光探针、生物成像等方面的应用前景的研究，并注重讨论金属-有机骨架新材料的光致转晶等学术问题。研究结果将丰富人们对构建光功能骨架材料的合成规律、结构与性能关联的认识，拓展金属有机骨架材料的应用。

本项目开展了光功能金属有机骨架材料的制备、性能修饰研究工作。通过合理的合成策略制备了多种二芳基乙烯类光致变色母体分子；在由金属卤簇结构基元构建光功能金属有机骨架材料的合成研究中通过有机胺配体、简单无机反应原料调控，自组装合成了系列具有特殊骨架结构的光功能金属有机骨架材料单晶，并进行了单晶结构分析，确定结构。对金属卤簇基光功能金属有机骨架材料进行了一定的光学性能表征和机制分析，考察了新型光功能金属有机骨架材料结构的稳定和发光机制，在一定意义上拓展了分子尺度裁剪研究。