Rational Molecular Design for Boosting Afterglow Efficiency in Nonplanar Carbazolocarbazoles.

ABSTRACT: Carbazolocarbazole (CCz) represents a novel class of heterocycles in the carbazole family, distinguished by its unique structure and related properties. However, the significant challenges associated with its synthesis have constrained the exploration and related studies in recent years. Herein, we presented a thorough and reproducible method for synthesizing gram-sized helical CCz, extending its functionalization to investigate both the pristine CCz and its six derivatives with various substituents. This work is the debut of CCz compounds displaying afterglow characteristics in the solid state. The CCz derivatives demonstrated impressive ultralong room-temperature phosphorescence (URTP) lifetimes, ranging from 0.52 to 0.72 s, which are considered relatively long among the carbazole family

SUBMITTER: Liu PC 

PROVIDER: S-EPMC11863156 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature