新型柔性金属有机框架材料的构筑及其动态行为与性能调控

近年来，金属有机框架(MOFs)材料已成为化学与材料科学等交叉研究领域的前沿与热点之一，但过去的研究主要集中在刚性MOFs材料方面，对柔性MOFs的研究则相对较少，这方面研究还存在很多重要的科学问题亟待解决，如：功能导向的柔性MOFs材料的构筑问题；柔性框架材料的动态结构及其动态行为的表征问题；以及此类材料的性能与其动态结构之间的关系问题等等。本项目将围绕这些重要科学问题，以高效物质存储与动态分离等功能为导向，从柔性MOFs的合理设计与构筑出发，研究此类柔性框架材料的构筑规律，建立和完善此类柔性材料动态结构与行为的表征方法，探讨柔性框架材料动态行为的机理，揭示此类材料产生特殊性能的原因，总结其中的规律性，进一步探索其物质存储与分离性能，揭示结构性能关系等。在此基础上，探索此类柔性框架材料的功能优化与实用化。希望通过本项目的实施及相关科学问题的初步解决，为本领域的发展起到引领及推动作用。

In recent years, metal-organic frameworks (MOFs) have become one of active and frontier fields of chemistry and material science. During the past decades, the investigation in this field has primarily focused on the rigid MOFs, while the study of flexible MOFs is still rare, leaving many scientific issues to be resolved, such as the function-oriented construction of flexible MOFs; the dynamic structure of flexible frameworks as well as the characterization of their dynamic behaviors; and the intrinsic relationship between the dynamic structures and resulting properties of this class of materials. Focusing on these scientific issues and oriented by the aim of achieving effective material storage and dynamic separation, this project will proceed with the reasonable design and construction of flexible MOFs, along with the exploration of their fundamental assembly rules. Through establishing and improving the characterization methods for the dynamic structures and behaviors of such flexible MOFs, this project will then discover the mechanism of their dynamic behaviors and unravel the nature of the resulting unique properties as well as the implicit regularity, followed by further investigation of their material storage and separation functions to reveal the intrinsic structure-property relationship. On this basis, this project eventually aims to explore the functional optimization and practicalization of this class of flexible MOF materials. Finally, we hope to promote and lead the development of this field through the execution of this project together with the resolvement of related scientific problems.