Covalently Cross-Linked Coordination Crystals

该项目的目标是适应晶体工程的最新进展，用于制备共价交联的配位晶体，这种材料可能用于分离和离子传导。我们使用模板方法。我们合成了刚性的纳米级有机分子，然后通过不稳定的有机配体与金属配位键在固态下组装。在第二步中，我们在不改变主体晶体结构的情况下引入客体分子。这些客体分子使原始有机分子彼此交联。通过这种方式，我们能够获得一种新的有机固体体系，即，结晶多维共价键合的有机固体。这种材料在化学和物理上比现有的有机材料更坚固。这项研究计划是与接受晶体工程最先进培训的研究生和本科生一起进行的。有机反应方法学和固态化学两个不同领域的基本原理应用于有用的晶体材料的设计。下一代固态器件将需要结合典型有机化合物的功能特异性和传统无机固体的整体结构的联合收割机的材料。在这个项目中，开发了用于设计这些材料的路线的方法，其中有机和无机部分在分子尺度上结合在一起。这里需要有机、无机和固态化学之间的重要协同作用，这种协同作用对于成功设计有用的装置至关重要。

The goal of this project is to adapt recent advances in crystal engineering for the preparation of covalently cross-linked coordination crystals, materials potentially useful in separations and ion conduction. We use a template methodology. We synthesize rigid nanoscale organic molecules which are then initially assembled in the solid state via labile organic-ligand-to-metal coordination-bonds. In the second step we introduce guest molecules without altering the host crystal structure. These guest molecules cross-link the original organic molecules to each other. In this way, we are able to access a new regime of organic solids viz., crystalline multi-dimensional covalently bonded organic solids. Such materials will be chemically and physically more robust than existing organic materials. This research program is carried out together with graduate and undergraduate students who receive state-of-the-art training in crystal engineering. The fundamentals of two different fields, organic reaction methodology and solid state chemistry, are applied in the design of useful crystalline materials. The next generation of solid state devices will require materials that combine both the functional specificity of typical organic compounds plus the global architecture of traditional inorganic solids. In this project methodologies are developed for designing routes to these materials in which the organic and inorganic portions are joined together at a molecular scale. An important synergism is needed here between organic, inorganic and solid state chemistry, a synergism which is vital to the successful design of useful devices.