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Research Article | Open Access

One-pot gram-scale synthesis of robust copper nanoclusters for photocatalytic difluoroalkylarylation of alkenes

Xiaoli Meng1,2,§Ayisha He1,§Xiaodan Yan2,§Lin Wang1Zaiwang Zhao1Yanyuan Jia1Jinlu He2 ( )Shuo Guo2 ( )Hui Shen1 ( )
College of Energy Materials and Chemistry, Inner Mongolia University, Hohhot 010021, China
College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China

§ Xiaoli Meng, Ayisha He, and Xiaodan Yan contributed equally to this work.

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Abstract

Atomically precise copper nanoclusters have emerged as a promising class of catalysts. However, the exploration of copper nanocluster catalysts has been slow, likely because of their complicated synthesis, limited stability, and low activity under mild conditions. Herein, we present highly stable copper nanoclusters [Cu8(S2CN(CH3)2)6(PPh3)4]2+ (where S2CN(CH3)2 is dimethyldithiocarbamate and PPh3 is triphenylphosphine) with facile synthesis and high photocatalytic performance. The nanoclusters were obtained on a gram-scale through a one-pot reduction of Cu(S2CN(CH3)2)2 with (PPh3)2CuBH4 in the presence of 3,5-bis(trifluoromethyl)pyrazole. Comprehensive experimental and theoretical characterization of the nanoclusters was performed to elucidate their atomic and electronic structure and explain their high stability under light irradiation. Importantly, the nanoclusters exhibit photocatalytic activity in the difluoroalkylarylation of alkenes at room temperature, yielding a wide range of complex difluoromethyl compounds under mild conditions. This study not only presents an efficient strategy for the synthesis of copper nanoclusters with atomically precise and highly robust structures but also highlights the potential of atomically precise copper nanocluster catalysts in the rapid construction of molecular complexity with substantial material economy.

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Polyoxometalates
Article number: 9140080
Cite this article:
Meng X, He A, Yan X, et al. One-pot gram-scale synthesis of robust copper nanoclusters for photocatalytic difluoroalkylarylation of alkenes. Polyoxometalates, 2025, 4(3): 9140080. https://doi.org/10.26599/POM.2024.9140080

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Received: 15 August 2024
Revised: 11 September 2024
Accepted: 28 September 2024
Published: 23 October 2024
© The Author(s) 2025. Published by Tsinghua University Press.

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits reusers to distribute, remix, adapt, and build upon the material in any medium or format, so long as attribution is given to the original author(s) and the source, provide a link to the license, and indicate if changes were made. See http://creativecommons.org/licenses/by/4.0/

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