Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2020 Mar 23;59(13):5336-5340.
doi: 10.1002/anie.201915844. Epub 2020 Feb 12.

Photoresponsive Propeller-like Chiral AIE Copper(I) Clusters

Yu-Jin Kong  1 , Zhi-Ping Yan  2 , Si Li  1 , Hui-Fang Su  1 , Kai Li  1 , You-Xuan Zheng  2 , Shuang-Quan Zang  1
Affiliations

Photoresponsive Propeller-like Chiral AIE Copper(I) Clusters

Yu-Jin Kong et al. Angew Chem Int Ed Engl. .

Abstract

A pair of propeller-like chiral trinuclear CuI clusters (R/S-Cu3) with unique photoinduced fluorescence enhancement were prepared. R/S-Cu3 showed intense variable luminescence after UV light irradiation, which was attributed to the stepwise oxidation of ligand in the clusters. It exhibited typical aggregation-induced emission (AIE) (αAIE =17.3). Mechanism studies showed that metal cluster-centered (MCC) and triplet metal-to-ligand charge-transfer (3 MLCT) processes are the origin of the luminescence; the processes are regulated by a restriction of intramolecular motions mechanism in a different state. The chiral structure and AIE feature endow R/S-Cu3 with remarkable circularly polarized luminescence (glum =2×10-2 ) in the aggregated state. It shows good capability for producing reactive oxygen species. This work enriches the kinds of atomically precise AIE clusters, gains insight into their luminescence mechanism, and offers the prospect of application in multifunctional materials.

Keywords: aggregation-induced emission; circularly polarized luminescence; copper; metal clusters; photoresponsive compounds.

PubMed Disclaimer

References

    1. None
    1. G. Feng, B. Liu, Acc. Chem. Res. 2018, 51, 1404-1414;
    1. H. T. Feng, Y. X. Yuan, J. B. Xiong, Y. S. Zheng, B. Z. Tang, Chem. Soc. Rev. 2018, 47, 7452-7476;
    1. H. Liu, J. Zeng, J. Guo, H. Nie, Z. Zhao, B. Z. Tang, Angew. Chem. Int. Ed. 2018, 57, 9290-9294;
    1. Angew. Chem. 2018, 130, 9434-9438;

LinkOut - more resources