化学
镧系元素
位阻效应
互补性(分子生物学)
金属有机骨架
丝氨酸
氨基酸
苏氨酸
氯化物
金属
晶体结构
立体化学
组合化学
结晶学
有机化学
吸附
离子
酶
生物
生物化学
遗传学
作者
Marta Mon,Rosaria Bruno,Rosangela Elliani,Antonio Tagarelli,Xiaoni Qu,Sanping Chen,Jesús Ferrando‐Soria,Donatella Armentano,Emilio Pardo
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2018-10-16
卷期号:57 (21): 13895-13900
被引量:29
标识
DOI:10.1021/acs.inorgchem.8b02409
摘要
We report two new highly crystalline metal–organic frameworks (MOFs), derived from the natural amino acids serine (1) and threonine (2), featuring hexagonal channels densely decorated with hydroxyl groups belonging to the amino acid residues. Both 1 and 2 are capable of discriminating, via solid-phase extraction, a mixture of selected chloride salts of lanthanides on the basis of their size, chemical affinity, and/or the flexibility of the network. In addition, this discrimination follows a completely different trend for 1 and 2 because of the different locations of the hydroxyl groups in each compound, which is evocative of steric complementarity between the substrate and receptor. Last but not least, the crystal structures of selected adsorbates could be resolved, offering unprecedented snapshots on the capture process and enabling structural correlations with the separation mechanism.
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