An alkynyl-protected Ag13−xCu6+x nanocluster for catalytic hydrogenation

A novel alkynyl-stabilized silver–copper alloy nanocluster with the composition of [Ag13−xCu6+x(tBuC6H4C≡C)14(PPh3)6](SbF6)3 was prepared by the (PPh3)2CuBH4-mediated reduction approach. The nanocluster features a centred disordered-octahedral Ag7Cu6 kernel, which is protected by hybrid alkynyl and...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2022-12, Vol.52 (1), p.52-57
Main Authors: Yan-Li, Gao, Sun, Xueli, Tang, Xiongkai, Xie, Zhenlang, Tian, Guolong, Zi-Ang, Nan, Yang, Huayan, Shen, Hui
Format: Article
Language:English
Subjects:
Clusters
Copper
Copper base alloys
Hydrogenation
Ligands
Nanoclusters
Nitrophenol
Silver
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Summary:A novel alkynyl-stabilized silver–copper alloy nanocluster with the composition of [Ag13−xCu6+x(tBuC6H4C≡C)14(PPh3)6](SbF6)3 was prepared by the (PPh3)2CuBH4-mediated reduction approach. The nanocluster features a centred disordered-octahedral Ag7Cu6 kernel, which is protected by hybrid alkynyl and triphenylphosphine ligands. Structural comparison of this two-electron nanocluster with other alkynyl-capped Ag/Cu ones suggested that the structure of alkynyl ligands played an important role in dictating the structures of the resulting nanoclusters. The title cluster showed high performance in the catalytic hydrogenation of 4-nitrophenol, indicative of the bright future of cluster-based catalysts.
ISSN:1477-9226
1477-9234
DOI:10.1039/d2dt03295c