Secondary building units as the turning point in the development of the reticular chemistry of MOFs.
Secondary building units as the turning point in the development of the reticular chemistry of MOFs.
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DOI：
10.1126/sciadv.aat9180
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发表时间：
2018-10
期刊：
影响因子：
13.6
通讯作者：
Yaghi OM
中科院分区：
文献类型：
--
作者：
Kalmutzki MJ;Hanikel N;Yaghi OM
SBU方法促进了具有独特性质、化学性质和应用的永久多孔MOFs的开发。二级结构单元（SBU）方法是发现永久多孔金属有机框架（MOFs）和启动网状化学领域的转折点。与配位网络中已知的单金属节点相比，SBU的多核性质允许这些结构在具有预定结构和性质的稳健晶体材料的设计中充当刚性、定向和稳定的构建单元。这一概念也使得开发具有超高孔隙率和结构复杂性的MOF成为可能。由其SBU赋予的MOF的结构、机械和化学稳定性也产生独特的骨架化学。所有这些化学反应-包括配体、连接体、金属交换和金属间化合物反应，以及精确控制有序空位的形成-都是在完全保留MOF结构、结晶度和孔隙率的情况下进行的。SBU的独特化学性质使得MOFs在许多应用中有用，包括气体和蒸气吸附、分离过程和SBU介导的催化。从本质上讲，SBU方法通过将分子化学（有机和无机）引入扩展的固态结构来实现科学家长期以来的梦想。这一贡献突出了战略部门在制定多边基金方面的重要性，并指出了仍有待利用的巨大潜力。
The SBU approach facilitated the development of permanently porous MOFs with unique properties, chemistry, and applications. The secondary building unit (SBU) approach was a turning point in the discovery of permanently porous metal-organic frameworks (MOFs) and in launching the field of reticular chemistry. In contrast to the single-metal nodes known in coordination networks, the polynuclear nature of SBUs allows these structures to serve as rigid, directional, and stable building units in the design of robust crystalline materials with predetermined structures and properties. This concept has also enabled the development of MOFs with ultra-high porosity and structural complexity. The architectural, mechanical, and chemical stability of MOFs imparted by their SBUs also gives rise to unique framework chemistry. All of this chemistry –including ligand, linker, metal exchange, and metallation reactions, as well as precisely controlled formation of ordered vacancies– is carried out with full retention of the MOF structure, crystallinity, and porosity. The unique chemical nature of SBUs makes MOFs useful in many applications including gas and vapor adsorption, separation processes, and SBU-mediated catalysis. In essence, the SBU approach realizes a long-standing dream of scientists by bringing molecular chemistry (both organic and inorganic) to extended solid-state structures. This contribution highlights the importance of the SBUs in the development of MOFs and points to the tremendous potential still to be harnessed.
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