Embedding and Positioning of Two Fe
<sup>II</sup>
<sub>4</sub>
L
<sub>4</sub>
Cages in Supramolecular Tripeptide Gels for Selective Chemical Segregation
作者:Marion Kieffer、Ana M. Garcia、Cally J. E. Haynes、Slavko Kralj、Daniel Iglesias、Jonathan R. Nitschke、Silvia Marchesan
DOI:10.1002/anie.201900429
日期:2019.6.11
self‐assembled into gels that embedded FeII4L4 metal–organic cages to form materials that were characterized by TEM, EDX, Raman spectroscopy, rheometry, UV/Vis and NMR spectroscopy, and circular dichroism. The cage type and concentration modulated gel viscoelasticity, and thus the diffusion rate of molecular guests through the nanostructured matrix, as gauged by 19F and 1H NMR spectroscopy. When two
一个未报告的d,l三肽自组装成凝胶,并嵌入Fe II 4 L 4金属有机笼中,形成了以TEM,EDX,拉曼光谱,流变学,UV / Vis和NMR光谱以及圆二色性为特征的材料。笼型和浓度调节了凝胶的粘弹性,因此分子客体在纳米结构基质中的扩散速率由19 F和1测得1 H NMR光谱。当在空间上分离的凝胶层中添加两个不同的笼子时,凝胶笼子复合材料可以使扩散到凝胶中的客体混合物在空间上分离。每个笼子在扩散过程中选择性地封装其优选的客体。因此,我们提出了一种使用嵌套的超分子相互作用来实现小分子分离的新策略。