A bow-like axially chiral cycloparaphenylene with simultaneously enhanced photoluminescence quantum yield and dissymmetry factor.

ABSTRACT: Cycloparaphenylenes (CPPs) with unique luminescent properties and well-defined dimensions are considered as ideal blocks for achieving excellent circularly polarized luminescence performance. Chiral CPPs face challenges in simultaneously achieving both high photoluminescence quantum yield (PLQY) and luminescence dissymmetry factor (g _lum) due to their unique size effects. In this work, a bow-shaped axially chiral CPP, named 4CzZ[6]CPP, was designed and synthesized by utilizing a carbazole-modified donor-acceptor axially chiral unit through a chirality embedding strategy. The topological structure and photophysical properties were elucidated through crystallography and spectroscopy. Remarkably, 4CzZ[6]CPP showed an exceptional PLQY of 74.4% due to the interaction charge tr

SUBMITTER: Yu MX 

PROVIDER: S-EPMC12633447 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature