Microporous Molecular Materials from Dipeptides Containing Non‐proteinogenic Residues
作者:Vitthal N. Yadav、Angiolina Comotti、Piero Sozzani、Silvia Bracco、Tore Bonge‐Hansen、Martin Hennum、Carl Henrik Görbitz
DOI:10.1002/anie.201507321
日期:2015.12.21
Dipeptides with two hydrophobic side chains have proved to be an exceptional source of microporous organic materials, but since previous structures were limited to the incorporation of only proteinogenic residues, their full potential as adsorbents has remained unexplored. Single‐crystal XRD data for ten new compounds with non‐proteinogenic L‐2‐aminobutanoic acid and/or L‐2‐amino‐pentanoic acid are
已证明具有两个疏水侧链的二肽是微孔有机材料的特殊来源,但是由于以前的结构仅限于仅合并蛋白质残基,因此尚未充分发挥其作为吸附剂的潜力。列出了十种具有非蛋白原L -2-氨基丁酸和/或L -2-氨基戊酸的新化合物的单晶XRD数据。通过CO 2和CH 4吸附等温线监测了其晶体孔(横截面为2.3至5.1Å)的气相可及性。包含CO 2还通过2D MAS NMR在光谱上进行了检测。广泛的构象分析表明,使用线性而不是分支侧链(例如L-缬氨酸和L-异亮氨酸)可提供具有更大构象自由度的肽,并产生更灵活的通道表面,可轻松适应一系列潜在的客体分子。