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学者姓名：雷振
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Abstract ：
Monodisperse gold nanoclusters constitute a new branch of nanomaterials with atomically precise molecular structures. Recently, we developed a "cluster-from-cluster" approach to assemble gold nanoclusters [Au25(SR)18]- (Au25) via atomically precise Au13 precursors. Herein we demonstrated that efficient synthesis of Au36(SR)24 (Au36) nanoclusters can be realized via this facile approach. Ten examples of Au36 with different thiolate ligands were prepared in high yields (up to 64%). Steric and electronic factors of the aromatic thiolate ligands were found to determine whether the final products would be Au25 or Au36. This work has not only presented a series of atomically precise Au36 nanoclusters but also indicates that the "cluster-from-cluster" approach is a practical approach for preparing metal nanoclusters in high yields.
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| GB/T 7714 | Lin, Yan-Yan , Nan, Zi-Ang , Lei, Zhen et al. Efficient synthesis of Au36(SR)24 nanoclusters via the cluster-from-cluster approach [J]. | NANOSCALE , 2025 , 17 (14) : 8724-8730 . |
| MLA | Lin, Yan-Yan et al. "Efficient synthesis of Au36(SR)24 nanoclusters via the cluster-from-cluster approach" . | NANOSCALE 17 . 14 (2025) : 8724-8730 . |
| APA | Lin, Yan-Yan , Nan, Zi-Ang , Lei, Zhen , Wang, Quan-Ming . Efficient synthesis of Au36(SR)24 nanoclusters via the cluster-from-cluster approach . | NANOSCALE , 2025 , 17 (14) , 8724-8730 . |
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Abstract ：
A ‘passivated precursor’ approach is developed for the efficient synthesis and isolation of all-alkynyl-protected gold nanoclusters. Direct reduction of dpa-passivated precursor Au-dpa (Hdpa=2,2’-dipyridylamine) in one-pot under ambient conditions gives a series of clusters including Au22(C≡CR)18 (R=−C6H4−2−F), Au36(C≡CR)24, Au44(C≡CR)28, Au130(C≡CR)50, and Au144(C≡CR)60. These clusters can be well separated via column chromatography. The overall isolation yield of this series of clusters is 40 % (based on gold), which is much improved in comparison with previous approaches. It is notable that the molecular structure of the giant cluster Au130(C≡CR)50 is revealed, which presents important information for understanding the structure of the mysterious Au130 nanoclusters. Theoretical calculations indicated Au130(C≡CR)50 has a smaller HOMO-LUMO gap than Au130(S−C6H4−4−CH3)50. This facile and reliable synthetic approach will greatly accelerate further studies on all-alkynyl-protected gold nanoclusters. © 2024 Wiley-VCH GmbH.
Keyword ：
Alkynyl ligands Alkynyl ligands Cluster compounds Cluster compounds Gold Gold Silica gel column chromatography Silica gel column chromatography Structure determination Structure determination
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| GB/T 7714 | Lei, Z. , Zhao, P. , Guan, Z.-J. et al. ‘Passivated Precursor’ Approach to All-Alkynyl-Protected Gold Nanoclusters and Total Structure Determination of Au130 [J]. | Chemistry - A European Journal , 2024 , 30 (42) . |
| MLA | Lei, Z. et al. "‘Passivated Precursor’ Approach to All-Alkynyl-Protected Gold Nanoclusters and Total Structure Determination of Au130" . | Chemistry - A European Journal 30 . 42 (2024) . |
| APA | Lei, Z. , Zhao, P. , Guan, Z.-J. , Nan, Z.-A. , Ehara, M. , Wang, Q.-M. . ‘Passivated Precursor’ Approach to All-Alkynyl-Protected Gold Nanoclusters and Total Structure Determination of Au130 . | Chemistry - A European Journal , 2024 , 30 (42) . |
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Abstract ：
Chemical etching of nano-sized metal clusters at the atomic level has a high potential for creating metal number-specific structures and functions that are difficult to achieve with bottom-up synthesis methods. In particular, precisely etching metal atoms one by one from nonmetallic element-centred metal clusters and elucidating the relationship between their well-defined structures, and chemical and physical properties will facilitate future materials design for metal clusters. Here we report the single-gold etching at a hypercarbon centre in gold(I) clusters. Specifically, C-centred hexagold(I) clusters protected by chiral N-heterocyclic carbenes are etched with bisphosphine to yield C-centred pentagold(I) (CAu5I) clusters. The CAu5I clusters exhibit an unusually large bathochromic shift in luminescence, which is reproduced theoretically. The etching mechanism is experimentally and theoretically suggested to be a tandem dissociation-association-elimination pathway. Furthermore, the vacant site of the central carbon of the CAu5I cluster can accommodate AuCl, allowing for post-functionalisation of the C-centred gold(I) clusters.
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| GB/T 7714 | Pei, Xiao-Li , Zhao, Pei , Ube, Hitoshi et al. Single-gold etching at the hypercarbon atom of C-centred hexagold(I) clusters protected by chiral N-heterocyclic carbenes [J]. | NATURE COMMUNICATIONS , 2024 , 15 (1) . |
| MLA | Pei, Xiao-Li et al. "Single-gold etching at the hypercarbon atom of C-centred hexagold(I) clusters protected by chiral N-heterocyclic carbenes" . | NATURE COMMUNICATIONS 15 . 1 (2024) . |
| APA | Pei, Xiao-Li , Zhao, Pei , Ube, Hitoshi , Lei, Zhen , Ehara, Masahiro , Shionoya, Mitsuhiko . Single-gold etching at the hypercarbon atom of C-centred hexagold(I) clusters protected by chiral N-heterocyclic carbenes . | NATURE COMMUNICATIONS , 2024 , 15 (1) . |
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Abstract ：
A 'passivated precursor' approach is developed for the efficient synthesis and isolation of all-alkynyl-protected gold nanoclusters. Direct reduction of dpa-passivated precursor Au-dpa (Hdpa=2,2'-dipyridylamine) in one-pot under ambient conditions gives a series of clusters including Au-22(C equivalent to CR)(18) (R=-C6H4-2-F), Au-36(C equivalent to CR)(24), Au-44(C equivalent to CR)(28), Au-130(C equivalent to CR)(50), and Au-144(C equivalent to CR)(60). These clusters can be well separated via column chromatography. The overall isolation yield of this series of clusters is 40 % (based on gold), which is much improved in comparison with previous approaches. It is notable that the molecular structure of the giant cluster Au-130(C equivalent to CR)(50) is revealed, which presents important information for understanding the structure of the mysterious Au-130 nanoclusters. Theoretical calculations indicated Au-130(C equivalent to CR)(50) has a smaller HOMO-LUMO gap than Au-130(S-C6H4-4-CH3)(50). This facile and reliable synthetic approach will greatly accelerate further studies on all-alkynyl-protected gold nanoclusters.
Keyword ：
Alkynyl ligands Alkynyl ligands Cluster compounds Cluster compounds Gold Gold Silica gel column chromatography Silica gel column chromatography Structure determination Structure determination
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| GB/T 7714 | Lei, Zhen , Zhao, Pei , Guan, Zong-Jie et al. 'Passivated Precursor' Approach to All-Alkynyl-Protected Gold Nanoclusters and Total Structure Determination of Au130 [J]. | CHEMISTRY-A EUROPEAN JOURNAL , 2024 , 30 (42) . |
| MLA | Lei, Zhen et al. "'Passivated Precursor' Approach to All-Alkynyl-Protected Gold Nanoclusters and Total Structure Determination of Au130" . | CHEMISTRY-A EUROPEAN JOURNAL 30 . 42 (2024) . |
| APA | Lei, Zhen , Zhao, Pei , Guan, Zong-Jie , Nan, Zi-Ang , Ehara, Masahiro , Wang, Quan-Ming . 'Passivated Precursor' Approach to All-Alkynyl-Protected Gold Nanoclusters and Total Structure Determination of Au130 . | CHEMISTRY-A EUROPEAN JOURNAL , 2024 , 30 (42) . |
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