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A Comparison of Two Isoreticular Metal-Organic Frameworks with Cationic and Neutral Skeletons: Stability, Mechanism, and Catalytic Activity.
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2020-01-14 , DOI: 10.1002/anie.201916649
Ge Huang 1 , Li Yang 2, 3 , Qi Yin 1 , Zhi-Bin Fang 1 , Xiao-Jing Hu 1, 4 , An-An Zhang 1 , Jun Jiang 2 , Tian-Fu Liu 1, 4 , Rong Cao 1, 4
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2020-01-14 , DOI: 10.1002/anie.201916649
Ge Huang 1 , Li Yang 2, 3 , Qi Yin 1 , Zhi-Bin Fang 1 , Xiao-Jing Hu 1, 4 , An-An Zhang 1 , Jun Jiang 2 , Tian-Fu Liu 1, 4 , Rong Cao 1, 4
Affiliation
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Although many ionic metal-organic frameworks (MOFs) have been reported, little is known about how the charge of the skeleton affects the properties of the MOF materials. Herein we report how the chemical stability of MOFs can be substantially improved through embedding electrostatic interactions in structure. A MOF with a cationic skeleton is impervious to extremely acidic, oxidative, reductive, and high ionic strength conditions, such as 12 m HCl (301 days), aqua regia (86 days), H2 O2 (30 days), and seawater (30 days), which is unprecedented for MOFs. DFT calculations suggested that steric hinderance and the repulsive interaction of the cationic framework toward positively charged species in microenvironments protects the vulnerable bonds in the structure. Diverse functionalities can be bestowed by substituting the counterions of the charged framework with identically charged functional species, which broadens the horizon in the design of MOFs adaptable to a demanding environment with specific functionalities.
中文翻译:
具有阳离子和中性骨架的两种等规金属有机骨架的比较:稳定性,机理和催化活性。
尽管已经报道了许多离子金属-有机骨架(MOF),但对于骨架电荷如何影响MOF材料的性质知之甚少。本文中,我们报告了如何通过将静电相互作用嵌入结构中来显着提高MOF的化学稳定性。具有阳离子骨架的MOF不受极端酸性,氧化,还原和高离子强度条件的影响,例如12 m HCl(301天),王水(86天),H2 O2(30天)和海水(30天)天),这对于MOF来说是前所未有的。DFT计算表明,在微环境中,空间位阻以及阳离子骨架对带正电荷的物质的排斥相互作用可保护结构中的脆弱键。
更新日期:2020-01-29
中文翻译:
![](https://scdn.x-mol.com/jcss/images/paperTranslation.png)
具有阳离子和中性骨架的两种等规金属有机骨架的比较:稳定性,机理和催化活性。
尽管已经报道了许多离子金属-有机骨架(MOF),但对于骨架电荷如何影响MOF材料的性质知之甚少。本文中,我们报告了如何通过将静电相互作用嵌入结构中来显着提高MOF的化学稳定性。具有阳离子骨架的MOF不受极端酸性,氧化,还原和高离子强度条件的影响,例如12 m HCl(301天),王水(86天),H2 O2(30天)和海水(30天)天),这对于MOF来说是前所未有的。DFT计算表明,在微环境中,空间位阻以及阳离子骨架对带正电荷的物质的排斥相互作用可保护结构中的脆弱键。