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首页> 外文期刊>Journal of the American Chemical Society >Guest Inclusion And Structural Dynamics In 2-d Hydrogen-bonded Metal-organic Frameworks
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Guest Inclusion And Structural Dynamics In 2-d Hydrogen-bonded Metal-organic Frameworks

机译：二维氢键结合的金属有机骨架中的客体包裹体和结构动力学

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摘要

Hydrogen-bonded coordination networks serve as structurally flexible alternatives to coordination polymers such as metal-organic frameworks (MOFs). While many MOFs are 3-D frameworks, an interesting goal in supramolecular chemistry is the design and synthesis of lamellar coordination networks that can mimic the structure and properties of naturally occurring clays. These 2-D solids take part in host-guest chemistry (e.g., storage and separations), photopolymerization reactions, and catalysis.rnLayered solids composed of organic, metal phosphonates, metal halide anions, and coordination polymer components have been widely used in the design and synthesis of inorganic/organic lamellar solids, where organic substituents and/or guest molecules are sandwiched between layers. The organic moieties can act as adjustable components to tune the crystal structure and control the physical and chemical properties.rnCompared to the widely studied coordination polymers, research on hydrogen bonded coordination frameworks is far less common, especially for materials having guest inclusion. Hydrogen bonds are comparatively weak, but charge-assisted hydrogen bonds provide strength and allow flexibility in the framework. Flexibility and stabilization of intermediates (e.g., metal ions before and after catalysis) are important when considering the construction of "designer" solid catalysts.
机译：氢键配位网络可以作为配位聚合物（如金属-有机骨架（MOF））的结构灵活替代品。尽管许多MOF是3-D骨架，但超分子化学中一个有趣的目标是设计和合成可模拟天然粘土结构和特性的层状配位网络。这些2-D固体参与客体化学（例如存储和分离），光聚合反应和催化。由有机，金属膦酸酯，金属卤化物阴离子和配位聚合物成分组成的分层固体已广泛用于设计中合成无机/有机层状固体，其中有机取代基和/或客体分子夹在层之间。有机部分可以作为可调节的组分来调节晶体结构并控制物理和化学性质。与广泛研究的配位聚合物相比，对氢键配位骨架的研究很少，特别是对于具有客体夹杂物的材料。氢键相对较弱，但电荷辅助氢键可提供强度并允许框架具有柔韧性。当考虑构建“设计”固体催化剂时，中间体（例如，催化之前和之后的金属离子）的柔韧性和稳定性很重要。

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