Advances in the chemistry of metal-organic frameworks
Advances in the chemistry of metal-organic frameworks
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DOI：
10.1039/b203193k
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发表时间：
2002-07-19
期刊：
影响因子：
3.1
通讯作者：
Yaghi, OM
中科院分区：
文献类型：
--
作者：
Rosi, NL;Eddaoudi, M;Yaghi, OM
目前，金属有机框架（mof）的合成已经取得了大量的研究成果，这一领域已经引起了广泛的关注，因为它可以将定义良好的分子构建块组装成周期性框架，并且这种过程有望实现材料的逻辑设计。mof的合成通常涉及有机链接和金属离子在极性溶剂中在温和温度（高达200摄氏度）和自压力（高达100大气压）下的共聚。由于大多数产物可以被认为是动力学驱动的，并且依赖于局部热力学极小值，因此有机链接和金属盐的溶解度、溶剂极性、介质的离子强度、温度和压力等因素在决定产物的特性方面起着关键作用。确实。合成参数的微小扰动是制备大量新型MOF化合物的基础。本着这一讨论的精神，我们提出了以下观点和发展，我们认为这些观点和发展有助于该领域的成熟：(1)一个概念框架，该框架统一了设计合成mof的过程，并且可以扩展到具有扩展结构的其他材料；（二）关于各种形状的积木可能形成的结构的论文；（III）实现框架设计和合成的重要考虑因素，在不改变底层框架拓扑的情况下，可以改变化学功能和指标；（IV）设计结构的孔隙度的必然性和影响框架稳定性的一些因素；（五）对链结的见解：互穿与交织，禁止链结和双重。这些观点将在一定程度上被提出，以激发讨论——它不是试图全面或彻底地处理这个丰富的领域。
An extensive body of research results currently exists from the synthesis of metal-organic frameworks (MOFs), an area that has attracted widespread attention due to the facility with which well-defined molecular building blocks can be assembled into periodic frameworks and the promise that such a process holds for the logical design of materials, The synthesis of MOFs generally involves the copolymerization of organic links and metal ions in a polar solvent under mild temperatures (up to 200 degreesC) and autogenous pressures (up to 100 atm). Since most products can be considered kinetically driven and lie on local thermodynamic minima, factors such as solubility of the organic link and metal salt, solvent polarity, ionic strength of the medium, temperature and pressure play critical roles in determining the character of products. Indeed. slight perturbations in synthetic parameters have been the basis for the preparation of what seems to be a flood of new MOF compounds.In the spirit of this discussion we advance the following ideas and developments that we believe contribute to the maturity of the field: (I) a conceptual framework that unifies the processes involved in the designed synthesis of MOFs, and which can be extended to other materials with extended structures; (II) a thesis concerning the possible structures that may form from building blocks with various shapes; (III) important considerations for achieving the design and synthesis of frameworks in which it is possible to change chemical functionality and metrics without changing the underlying framework topology, (IV) the inevitability of porosity for designed structures and some factors affecting framework stability; (V) insights on catenation: interpenetration versus interweaving, forbidden catenation, and duals. These points will be presented to in extent that will stimulate discussion-it is not an attempt to be comprehensive or to give a thorough treatment of this rich field.