晶态荧光多孔配位聚合物的气体传感研究

项目名称： 晶态荧光多孔配位聚合物的气体传感研究

项目编号： No.91622109

项目类型： 重大研究计划

立项/批准年度： 2017

项目学科： 数理科学和化学

项目作者： 张杰鹏

作者单位： 中山大学

项目金额： 80万元

中文摘要： 光致发光多孔配位聚合物可以结合有机小分子的结构多样性、配合物的荧光/磷光和传感特性、晶体材料的高度有序性以及高分子聚合物的一些优点，还可以引入有利于客体富集和筛分的各种孔道结构，非常适合用于传感各种小分子客体。当前，受限于传感灵敏度低、选择性低、成本高、器件制作困难以及表征技术不完备等问题，多孔配位聚合物用于定量传感或气体传感还很少。此外，对相关荧光传感机理和构效关系还知之甚少。在已有关于荧光和多孔配位聚合物的研究基础上，本项目计划通过有机配体与晶体结构的合理设计，合成系列对氧气、二氧化碳、有机蒸气等环境相关气体具有高灵敏度、高选择性的传感性能的新型荧光多孔配位聚合物，再通过原位光谱和晶体学测试，结合计算机模拟研究相关传感机理和构效关系，为相关材料的实用化提供理论与实践根据。

中文关键词： 荧光；磷光；灵敏度；选择性；吸附

英文摘要： Combining advantages of the structural diversity of small organic molecules, fluorescence/phosphorescence and sensing properties of molecular complexes, highly periodic arrangement of crystalline materials, and macromolecular polymers, as well as the nanosized channels of porous materials, photoluminescent porous coordination polymers are very suitable for sensing small molecular guests. Due to the relatively low sensitivity, low selectivity and high cost, difficulty for device fabrication, and limitation of characterizing techniques, porous coordination polymers are still rarely studied for quantitative sensing or gas sensing. Also, the sensing mechanisms of porous coordination polymers are still barely understood. Based on our research experiences on luminescent and porous coordination polymers, this project will synthesize a series of new luminescent porous coordination polymers with high sensitivity and selectivity for environmentally important gases including oxygen, carbon dioxide, volatile organic vapors, etc., via rational design of organic ligands and crystal structures. Also, the gas sensing mechanisms will be studied by in situ spectroscopy and crystallography techniques, as well as computational calculations, which will provide theoretical and practical data for promoting the application of porous coordination polymers.

英文关键词： fluorescence;phosphorescence;sensitivity;selectivity;adsorption