设计具有多取代基的近紫外激发的高共轭有机芳香多羧酸连接体，利用多取代基竞争配位构筑具有剩余自由多活性位点的金属有机框架化合物晶态基元并确定其结构，继以通过多方式协同(共价-配位、离子交换-配位及离子取代-配位等)后合成修饰自由活性位点基团实现稀土功能化，从而组装出具有多光响应中心的光功能稀土晶态杂化材料体系。研究其光物理性质与光功能集成。在此基础上选取光响应性质优异的稀土晶态杂化材料，重点开展基于多光响应中心在比率与色度化学传感领域的应用研究：近红外光响应传感污染物及其标志物；可见光响应同步传感关联污染物与其代谢物/标志物；可见光响应同步传感复杂体系(多污染物或多代谢物/标志物)。并在复杂体系传感检测的基础上尝试设计构建基于多光响应的分子杂化逻辑器件。为光功能稀土晶态杂化材料的连接体设计、晶态基元构筑、功能化组装、光响应、化学传感及逻辑器件应用研究提供重要的基础性数据。

The high conjugated organic aromatic polycarboxylic linker molecules with multi substituted groups are designed and synthesized, which possess NUV near ultraviolet-visible light absorption or excitation. Through the competitive coordination of multi substituted groups, the metal-organic framework crystal units with free active multi position are constructed and their crystal structure are determined. Futherly the rare earth functionalization of these crystal units are realized by means of the multiple cooperative post-synthetical modification (covalent-coordiantion,ion exchange-coordination or ion substitution-coordination), the photofunctional rare earth hybrid crystal materials are assembled, which possess the multiple photoactive responsive centers. The photophysical properties and photofunctional integration of them are studied. Subsequently, the ideal photo responsive rare earth hybrid crystal materials are selected and utilized to develop their multiple photo responsive applications in ratiometric or colormetric chemical sensing: such as the NIR photoresponsive detection of enviromental pollutants or their metabolites/biomarkers, the visible photoresponsive simultaneous detection of associated pollutants with their metabolites/biomarkers and the visible photoresponsive simultaneous detection of complictated system (multi pollutants or multi metabolites/biomarkers). In views of the sensing and detection of complicated systems, the logic devices based with mutiple response are tried to design. The research will provide important fundamental data for the topic of linker design, crystal unit construction, functionalized assembly, photophysics, and application in chemical sensing as well logic device of photfunctinal rare earth crystalline hybrid materials.