一种基于萘基苯基丙烯腈的新型水相人工光捕获体系

A Novel Naphthalenyl-Phenyl-Acrylonitrile-Based Aqueous Artificial Light-Harvesting System

本文以水溶性柱[6]芳烃(P[6]A)作为主体分子,萘基苯基丙烯腈衍生物(NPA)作为客体分子,两者在水中通过主–客体相互作用形成两亲性复合物,并进一步自组装成纳米颗粒(P[6]A-NPA)。该纳米颗粒可以对荧光染料尼罗红(NiR)进行包载,成功构筑了一种新型水相人工光捕获体系(P[6]A-NPA-NiR)。值得注意的是,当P[6]A-NPA与NiR的摩尔比达到100:1时,该体系的能量转移效率和天线效应分别达到了55%和14.0,为水相超分子人工光捕获领域的研究提供了新思路。A water-soluble pillar[6]arene (P[6]A) was used as host molecule and a naphthalenyl-phenyl-acrylonitrile-based derivative (NPA) was used as guest molecule. The amphiphilic complex of P[6]A-NPA was formed through host-guest interactions in water and further self-assembled into P[6]A-NPA nanoparticles. Moreover, the above nanoparticles can encapsulate the fluorescent dye Nile Red (NiR) and construct a novel aqueous artificial light-harvesting system (P[6]A-NPA-NiR). Notably, when the molar ratio of NPA and NiR reaches 100:1, the energy transfer efficiency and antenna effect of the system reach 55% and 14.0, providing new ideas in the field of aqueous supramolecular artificial light-harvesting systems.