Photoresponsive Metal-Organic Frameworks with Light-Dependent Guest Uptake

具有光依赖性客体吸收的光响应金属有机框架

• 批准号: 2185097
• 金额: --
• 依托单位: CARDIFF UNIVERSITY
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2185097
• 关键词: Photoresponsive; Metal; Organic; Frameworks; Light

Metal-organic frameworks (MOFs) are a class of microporous crystalline materials made of organic ligands linked to metal nodes, self-assembled to form infinite frameworks with nanoscale pore and channels. These pores and channels are on the same size scale as many small molecules important to life on earth. As such, MOFs have found applications in gas storage, gas separations, catalysis and drug delivery. Photoactive MOFs are a relatively new subfield; photoresponsivity can be achieved by inclusion of a photoactive guest, by post-synthetic modification of an existing framework or by designing framework linkers that are intrinsically photoactive. This project exploits new photoresponsive MOFs that we make and use in our research group to control the flow of small gases of medical and industrial interest into, out of, and within single crystals using photoirradiation. We also have extensive experience of using infrared and Raman microspectroscopy to give information on the dynamic behaviour of guests within MOF single crystals. The combination of novel photoresponsive materials with such advanced spectroscopic techniques is the next step to make, that will elucidate the nanofluidic motion of molecules in these controlled nanospaces. The student will work on all aspects of the research, from making materials through to the advanced characterisation techniques that are required to understand and control their application.

金属-有机骨架材料（Metal-organic frameworks，MOFs）是一类由有机配体与金属节点连接而成的微孔晶体材料，通过自组装形成具有纳米级孔道的无限大骨架。这些孔隙和通道的大小与地球上许多重要的小分子相同。因此，M0 F已经在气体储存、气体分离、催化和药物递送中得到应用。光活性MOFs是一个相对较新的子领域;光响应性可以通过包含光活性客体、通过现有框架的合成后修饰或通过设计固有光活性的框架接头来实现。该项目利用我们在研究小组中制造和使用的新的光响应MOFs来控制医疗和工业利益的小气体流入，流出和使用光照射在单晶内的流动。我们还拥有使用红外和拉曼显微光谱来提供有关MOF单晶内客体动态行为的信息的丰富经验。将新型光响应材料与这种先进的光谱技术相结合是下一步的工作，这将阐明分子在这些受控纳米空间中的纳米流体运动。学生将从事研究的各个方面，从制作材料到理解和控制其应用所需的先进表征技术。