Endowing single-crystal polymers with circularly polarized luminescence.

ABSTRACT: The preparation of single-crystal polymers with circularly polarized luminesce (CPL) remains a challenging task in chemistry and materials science. Herein, we present the single-crystal-to-single-crystal topochemical photopolymerization of a chiral organic salt to achieve this goal. The in-situ reaction of 1,4-bis((E)-2-(pyridin-4-yl)vinyl)benzene (1) with chiral (+)- or (-)-camphorsulfonic acid (CSA) gives the monomer crystal 1[( + )/( - )-CSA]₂ showing yellow CPL with a high luminescent dissymmetry factor |g_lum| of 0.035 and emission quantum yield Φ of 49.7%. Upon photo-induced topochemical [2 + 2] polymerization, single-crystal polyionic polymers of poly-1[( + )/( - )-CSA]₂ are obtained. The single-crystal-to-single-crystal (SCSC) photopolymerization is

SUBMITTER: Li ZQ 

PROVIDER: S-EPMC11696868 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature