Multiple-stimuli fluorescent responsive metallo-organic helicated cage arising from monomer and excimer emission.

ABSTRACT: Effectively regulating monomer and excimer emission in a singular supramolecular luminous platform is challenging due to high difficulty of precise control over its aggregation and dispersion behavior when subjected to external stimuli. Here, we show a metallo-cage (MTH) featuring a triple helical motif that displays a unique dual emission. It arises from both intramolecular monomer and intermolecular excimer, respectively. The distorted molecular conformation and the staggered stacking mode of MTH excimer are verified through single crystal X-ray diffraction analysis. These structural features facilitate the switch between monomer and excimer emission, which are induced by changes in concentration and temperature. Significantly, adjusting the equilibrium between these two states in MTH en

SUBMITTER: Zhang Z 

PROVIDER: S-EPMC11344131 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature