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A Flexible Interpenetrated Zirconium-Based Metal-Organic Framework with High Affinity toward Ammonia.
ChemSusChem ( IF 7.5 ) Pub Date : 2020-02-05 , DOI: 10.1002/cssc.202000306 Yuanyuan Zhang 1, 2 , Xuan Zhang 2 , Zhijie Chen 2 , Ken-Ichi Otake 2 , Gregory W Peterson 3 , Yongwei Chen 2 , Xingjie Wang 2 , Louis R Redfern 2 , Subhadip Goswami 2 , Peng Li 2 , Timur Islamoglu 2 , Bo Wang 1 , Omar K Farha 2, 4
ChemSusChem ( IF 7.5 ) Pub Date : 2020-02-05 , DOI: 10.1002/cssc.202000306 Yuanyuan Zhang 1, 2 , Xuan Zhang 2 , Zhijie Chen 2 , Ken-Ichi Otake 2 , Gregory W Peterson 3 , Yongwei Chen 2 , Xingjie Wang 2 , Louis R Redfern 2 , Subhadip Goswami 2 , Peng Li 2 , Timur Islamoglu 2 , Bo Wang 1 , Omar K Farha 2, 4
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Flexible metal-organic frameworks (MOFs) are highly attractive porous crystalline materials presenting structural changes when exposed to external stimuli, the mechanism of which is often difficult to glean, owing to their complex and dynamic nature. Herein, we report a flexible, interpenetrated Zr-MOF, NU-1401, composed of rare 4-connected Zr6 nodes and tetratopic naphthalenediimide (NDI)-based carboxylate linkers. The intra-framework pore opening deformation and inter-framework motions, when subjected to different solvent molecules, are investigated by single-crystal X-ray diffraction. It is shown that the distance and overlap angle between the stacked NDI pairs in the entangled structure can be finely tuned, and the interactions between NDI and solvent molecules lead to a solvochromism property. Furthermore, the presence of electron-deficient NDI units and Lewis acidic Zr(IV) site in the interpenetrated porous structure offers high density of adsorption sites for ammonia molecules, resulting in high uptake at low pressures.
中文翻译：
灵活的互穿锆基金属有机骨架，对氨具有高亲和力。
柔性金属有机骨架（MOF）是极具吸引力的多孔晶体材料，当暴露于外部刺激时会出现结构变化，由于其复杂和动态的特性，其机理通常很难被理解。在这里，我们报告了一种灵活的，互穿的Zr-MOF，NU-1401，由稀少的4位连接的Zr6节点和基于四位萘二甲酰亚胺（NDI）的羧酸酯连接基组成。通过单晶X射线衍射研究了不同溶剂分子作用下，骨架内的开孔变形和骨架间的运动。结果表明，可以很好地调整纠缠结构中堆叠的NDI对之间的距离和重叠角，并且NDI与溶剂分子之间的相互作用导致溶剂致变色性质。此外，
更新日期：2020-03-05
中文翻译：
灵活的互穿锆基金属有机骨架，对氨具有高亲和力。
柔性金属有机骨架（MOF）是极具吸引力的多孔晶体材料，当暴露于外部刺激时会出现结构变化，由于其复杂和动态的特性，其机理通常很难被理解。在这里，我们报告了一种灵活的，互穿的Zr-MOF，NU-1401，由稀少的4位连接的Zr6节点和基于四位萘二甲酰亚胺（NDI）的羧酸酯连接基组成。通过单晶X射线衍射研究了不同溶剂分子作用下，骨架内的开孔变形和骨架间的运动。结果表明，可以很好地调整纠缠结构中堆叠的NDI对之间的距离和重叠角，并且NDI与溶剂分子之间的相互作用导致溶剂致变色性质。此外，
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