Upconverted Circularly Polarized Luminescence on Chiral Lanthanide-Organic Tetrahedral Complexes

Open AccessCCS ChemistryCOMMUNICATIONS6 Jan 2025Upconverted Circularly Polarized Luminescence on Chiral Lanthanide-Organic Tetrahedral Complexes Xiao-Fang Duan, Honghan Ji, Li-Peng Zhou, Shao-Jun Hu, Jingjing Fu, Pengfei Duan, Xiao-Qing Guo and Qing-Fu Sun Xiao-Fang Duan , Honghan Ji , Li-Peng Zhou , Shao-Jun Hu , Jingjing Fu , Pengfei Duan , Xiao-Qing Guo and Qing-Fu Sun https://doi.org/10.31635/ccschem.024.202405005 SectionsSupplemental MaterialAboutPDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareFacebookTwitterLinked InEmail Achieving upconverted circularly polarized luminescence (UCCPL) in rare-earth complexes has long been considered a formidable challenge due to the inherently low upconversion (UC) quantum yields and the complex stereochemistry of lanthanide centers. Here, enantiopure tetrahedral Ln4(LR/S)6 cages with Δ Δ Δ Δ or Λ Λ Λ Λ metal stereochemistry were constructed by assembling C2-symmetric chiral ligands with Ln3+ ions. Under 980 nm excitation, UC emissions from Eu3+ and Sm3+ centers in the heterometallic (Yb/Eu)4(LR/S)6 and (Yb/Sm)4(LR/S)6 assemblies were realized via multimeric triplet-mediated cooperative sensitization pathways in solution at room temperature. Furthermore, the integration of photon UC with chirality enabled UCCPL to be achieved in the rare-earth supramolecular system for the first time. This work introduces a novel approach to designing UCCPL materials and opens new avenues for the development of chiral rare-earth functional materials. Download figure Download PowerPoint Previous articleNext article FiguresReferencesRelatedDetails Issue AssignmentNot Yet AssignedSupporting Information Copyright & Permissions© 2025 Chinese Chemical Society Downloaded 0 times PDF downloadLoading ...