Octahedral Cs<sub>2</sub>AgBiBr<sub>6</sub> Double Perovskite Microcrystals for C–C Coupling Reactions under Visible-Light Irradiation
In this report, we demonstrate the first application of lead-free double perovskite microcrystals (Cs<sub>2</sub>AgBiBr<sub>6</sub> MCs) in sustainable C-C coupling reactions. The Cs<sub>2</sub>AgBiBr<sub>6</sub> MCs catalyst exhibits ultrahigh activity and selectivity in the α-alkylation of aldehyde and 2-bromoacetophenone, achieving a reaction rate of 2687.5 mmolg<sup>-1</sup>h<sup>-1</sup>, a turnover number (TON) value of 22854.5, and a turnover frequency (TOF) value of 2856.8 h<sup>-1</sup>, which are the highest among the known reports. The scalability of this system is validated through a continuous-flow reactor design, achieving 86% yield of 5.29 g of the target product at a gram-scale reaction. These results establish Cs<sub>2</sub>AgBiBr<sub>6</sub> MCs as a promising platform for solar-driven C-C bond formation in organic transformations, combining the optoelectronic advantages of perovskites with environmental compatibility.
Authors
- Yuxing Huang (ORCID: https://orcid.org/0000-0001-6012-8100)
- Troels Skrydstrup (ORCID: https://orcid.org/0000-0001-8090-5050)
- Jianyao Kou
- Xin Zhuo (ORCID: https://orcid.org/0000-0001-7681-819X)
- Ji Li (ORCID: https://orcid.org/0000-0002-8156-3811)
- Shujie Wang (ORCID: https://orcid.org/0000-0001-9744-1299)
- Ziyan Xing
Institutions
- Nanchang University (CN)
- Aarhus University (DK)
- Institute for Advanced Medical Research (US)
Publication Details
- Journal
- Inorganic Chemistry
- Published
- 2025-09-02
- DOI
- https://doi.org/10.1021/acs.inorgchem.5c02942
- Citations
- 1
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.73