Nanohoop Rotaxanes from Active Metal Template Syntheses and Their Potential in Sensing Applications
作者:Jeff M. Van Raden、Brittany M. White、Lev N. Zakharov、Ramesh Jasti
DOI:10.1002/anie.201901984
日期:2019.5.27
systems render them fascinating candidates for the design of novel mechanically interlocked molecules with new properties. Two high‐yielding strategies are used to prepare nanohoop [2]rotaxanes, which owing to the π‐rich macrocycle are highly emissive. Then, metal coordination, an intrinsic property afforded by the resulting mechanical bond, can lead to molecular shuttling as well as modulate the observed
具有环向π系统的大环具有独特的光电特性和光滑,刚性的孔,使其成为设计具有新特性的新型机械互锁分子的引人入胜的候选对象。有两种高产策略可用于制备纳米环[2]轮烷,由于富含π的大环化合物,它们具有很高的发射率。然后,金属配位(由所得机械键提供的一种固有特性)可以导致分子穿梭,并在有机和水性条件下均能调节观察到的荧光。受这些发现的启发,然后设计了一种自消灭的[2]轮烷,在存在分析物的情况下会自毁,从而引发强烈的荧光开启响应,从而为新型分子传感提供了概念验证。材料。更广泛地,