Self‐Assembly and Aggregation‐Induced Emission in Aqueous Media of Responsive Luminescent Copper(I) Coordination Polymer Nanoparticles
作者:Hugo Hernández‐Toledo、Hugo Torrens、Marcos Flores‐Álamo、Luisa De Cola、Guillermo Moreno‐Alcántar
DOI:10.1002/chem.202100865
日期:2021.6.4
Luminescent copper(I)-based compounds have recently attracted much attention since they can reach very high emission quantum yields. Interestingly, Cu(I) clusters can also be emissive, and the extension from small molecules to larger architecture could represent the first step towards novel materials that could be obtained by programming the units to undergo self-assembly. However, for Cu(I) compounds
发光铜(I)基化合物最近引起了很多关注,因为它们可以达到非常高的发射量子产率。有趣的是,Cu(I) 簇也可以是发光的,从小分子到更大结构的扩展可能代表了迈向新材料的第一步,这种材料可以通过对单元进行自组装来获得。然而,对于 Cu(I) 化合物,由于铜中心的配位多样性,超分子系统的形成具有挑战性。这项工作表明,可以在响应系统的构建中利用这种多样性。详细地,跟踪了膦-硫醚铜 (I) 衍生物在水中形成的不同聚集体的发射曲线的变化。我们的研究结果表明,Cu(I) 基配位聚合物纳米粒子 (CPNs) 的自组装和分解对溶剂组成很敏感。溶剂引起的变化与分子水平上铜的配位球的修饰有关,这不仅改变了发射剖面,而且还改变了聚集体的形态。我们的发现有望激发基于动态协调金属中心的智能超分子系统的构建。