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Updated: Jun 25, 2025
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Published on: December 6, 2021
Planar Core and Macrocyclic Shell Stabilized Atomically Precise Copper Nanocluster Catalyst for Efficient
Badriah Alamer1,2, Arunachalam Sagadevan1, Mohammad Bodiuzzaman1
1KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
Atomically precise copper nanoclusters (NCs) show high efficiency in catalyzing hydroboration reactions. This study details a novel copper NC catalyst for C-B bond formation in alkynes and alkenes.
Area of Science:
- * Nanomaterials Science
- * Catalysis
- * Organometallic Chemistry
Background:
- * Atomically precise metal nanoclusters (NCs) are valuable catalysts due to their tunable properties.
- * Copper NCs are emerging catalysts, but their application in bond-forming reactions is underdeveloped.
- * Developing efficient copper-based catalysts for C-B bond formation is crucial.
Purpose of the Study:
- * To synthesize and characterize a novel atomically precise copper nanocluster.
- * To evaluate the catalytic performance of the copper nanocluster in hydroboration reactions.
- * To elucidate the mechanism of copper nanocluster-catalyzed hydroboration.
Main Methods:
- * One-pot reduction synthesis of the copper nanocluster [Cu45(TBBT)29(TPP)4(C4H11N)2H14]2+.
- * Characterization of the nanocluster's structure and properties.
- * Catalytic testing in hydroboration of alkynes and alkenes under mild conditions.
Main Results:
- * High-yield synthesis of a structurally defined copper nanocluster with a planar core and unique shell.
- * The copper nanocluster demonstrated high efficiency as a catalyst for alkyne and alkene hydroboration.
- * Mechanistic studies revealed hydroboration proceeds via boryl-centered radicals initiated by single-electron oxidation.
Conclusions:
- * Tailored copper nanoclusters are promising catalysts for C-B heteroatom bond-forming reactions.
- * The developed copper nanocluster exhibits broad substrate scope and functional group tolerance.
- * This work opens new avenues for copper NCs in synthetic organic chemistry.
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