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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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A novel lantern-like Cu(i) cluster [Cu8(2-pyC 00000000000000000 00000000000000000 00000000000000000 01111111111111110 00000000000000000 01111111111111110 00000000000000000 01111111111111110 00000000000000000 00000000000000000 00000000000000000 C)6(N-triphosPh)2](PF6)2 (Cu8) was synthesized with high yield via ligand engineering, featuring mixed multidentate ligands of tris(diphenylphosphinomethyl)amine (N-triphosPh) and 2-pyridylethynyl (2-pyCCH). Its structure was thoroughly characterized using spectroscopic methods and X-ray crystallography. These techniques indicate that strategically introducing two kinds of multidentate ligands helps to enhance the overall stability of the lantern-like Cu8. Cu8 exhibits intense red photoluminescence (PL) at room temperature in the crystalline state, with a high PLQY of up to 31.4%. Significantly, Cu8 shows remarkable aggregation-induced emission enhancement (AIEE) in DMSO/H2O solution, as well as distinct temperature-responsive luminescence. Based on its excellent photophysical and chemical properties, Cu8 was employed as a light-emitting dopant in electrically driven organic light-emitting diodes (OLEDs) with an external quantum efficiency (EQE) of 14.3% at 500 cd m-2.
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| GB/T 7714 | Lin, Yan-Yan , Luo, Jian , Dai, Bo-Wen et al. Lantern-like cluster for high-efficiency electrically driven light-emitting diodes [J]. | DALTON TRANSACTIONS , 2025 , 54 (36) : 13483-13491 . |
| MLA | Lin, Yan-Yan et al. "Lantern-like cluster for high-efficiency electrically driven light-emitting diodes" . | DALTON TRANSACTIONS 54 . 36 (2025) : 13483-13491 . |
| APA | Lin, Yan-Yan , Luo, Jian , Dai, Bo-Wen , Yao, Jun-Fei , Xu, Liang-Jin , Lei, Zhen et al. Lantern-like cluster for high-efficiency electrically driven light-emitting diodes . | DALTON TRANSACTIONS , 2025 , 54 (36) , 13483-13491 . |
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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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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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