Porous Metal-Organic Materials

多孔金属有机材料

• 批准号: 9980469
• 负责人: Omar Yaghi
• 金额: $ 33万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-01-01 至 2002-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9980469&HistoricalAwards=false
• 关键词: Porous; Metal; Organic; Materials

9980469YaghiMetal-organic materials with open framework structures have recently been much discussed in the chemistry literature for their promise as materials with designed pore architecture and function, and their consequent importance in molecular recognition, sorption and gas storage applications. Strategies for the design of stable open framework that support permanent porosity and in particular that do not collapse in the absence of guests, have so far been largely unexplored thus limiting further progress in the field. This proposal is aimed at establishing synthetic strategies that utilize the well-established chemistry of metal carboxylate clusters for the design of extended-structure analogues. Specifically, examples of how divergent dicarboxylate linkers such as 1,4-benzenedicarboxylate (BDC) can be used instead extended porous ligands such as acetate to polymerize multinuclear zinc carboxylate clusters into stable extended porous frameworks. The rigid, planar, and divergent attributes of such linkers, when coupled with the rigidity and core bulk of the metal carboxylate clusters allow the design of non interpenetrating and rigid frameworks.The stability of the proposed materials that provide opportunities for the full exploitation and study of the molecular recognition properties of the channels will be pursued using gas and liquid sorption techniques. An understanding of these aspects of the chemistry is expected to pave the way for their use as sensors, gas storage materials, and as highly specific membranes for separations of polar organic molecules. On the fundamental level, the proposed research ultimately will lead to synthetic strategies that allow the translation of molecular structure and reactivity into extended solid-state materials. This is regarded as an area of priority for the integration of research and education for the training of students and postdoctoral scholars in areas of high interest to industry.

具有开放骨架结构的金属有机材料最近在化学文献中被广泛讨论，因为它们有望成为具有设计的孔结构和功能的材料，以及它们在分子识别、吸附和气体储存应用中的重要性。 用于设计支持永久多孔性并且特别是在不存在客人的情况下不塌陷的稳定开放框架的策略迄今为止在很大程度上尚未探索，因此限制了该领域的进一步进展。该提案旨在建立合成策略，利用金属羧酸盐簇的成熟化学来设计扩展结构类似物。 具体地，可以如何使用发散的二羧酸酯接头如1，4_苯二羧酸酯（BDC）代替延伸的多孔配体如乙酸酯以将多核羧酸锌簇簇合物延伸成稳定的延伸的多孔框架的实例。 刚性的，平面的，和发散的属性，这样的连接器，再加上刚性和核心散装的金属羧酸盐簇允许设计的非互穿和刚性frameworks.The稳定性的建议材料，提供机会，充分利用和研究的分子识别性能的通道将采用气体和液体吸附技术。 对这些化学方面的理解有望为它们用作传感器、气体储存材料和用于分离极性有机分子的高度特异性膜铺平道路。 在基础层面上，拟议的研究最终将导致合成策略，允许将分子结构和反应性转化为扩展的固态材料。 这被视为将研究与教育相结合的优先领域，以便在工业界高度关注的领域培训学生和博士后学者。