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- Title
AIE Triggers the Circularly Polarized Luminescence of Atomically Precise Enantiomeric Copper(I) Alkynyl Clusters.
- Authors
Zhang, Miao‐Miao; Dong, Xi‐Yan; Wang, Zhao‐Yang; Li, Hai‐Yang; Li, Shi‐Jun; Zhao, Xueli; Zang, Shuang‐Quan
- Abstract
Atomically precise enantiomeric metal clusters are scarce, and copper(I) alkynyl clusters with intense circularly polarized luminescence (CPL) responses have not been reported. A pair of chiral alkynyl ligands, (R/S)‐2‐diphenyl‐2‐hydroxylmethylpyrrolidine‐1‐propyne (abbreviated as R/S‐DPM) we successfully prepared and single crystals were characterized of optically pure enantiomeric pair of atomically‐precise copper(I) clusters, [Cu14(R/S‐DPM)8](PF6)6 (denoted as R/S‐Cu14), which feature bright red luminescence and CPL with a high luminescence anisotropy factor (glum). A dilute solution containing R/S‐Cu14 was nonluminescent and CPL inactive at room temperature. Crystallization‐ and aggregation‐induced emission (CIE and AIE, respectively) contribute to the triggering of the CPL of R/S‐Cu14 in the crystalline and aggregated states. Their AIE behavior and good biocompatibility indicated applications of these copper(I) clusters in cell imaging in HeLa and NG108‐15 cells.
- Subjects
COPPER; HELA cells; CELL imaging; LUMINESCENCE; SINGLE crystals; METAL clusters
- Publication
Angewandte Chemie, 2020, Vol 132, Issue 25, p10138
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201908909