Single-molecule manipulation of copper nanoclusters for modulating nonlinear optics

The detailed elucidation of structure–property relationships at the molecular level in metal nanoclusters is highly valuable for advancing structure design and optimizing performance. However, effectively manipulating metal nanoclusters’ physical and chemical properties at the single-molecule level...

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Main Authors: Xuekun Gong, Zhuang-Hua Liu, Qinghua Xu, Lin Wang, Qingxiang Guo, Jian Zhang, Qiao-Hong Li, Wei-Hui Fang, Hui Shen
Format: Article
Language:English
Published: Tsinghua University Press 2025-03-01
Series:Polyoxometalates
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Online Access:https://www.sciopen.com/article/10.26599/POM.2024.9140072
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author Xuekun Gong
Zhuang-Hua Liu
Qinghua Xu
Lin Wang
Qingxiang Guo
Jian Zhang
Qiao-Hong Li
Wei-Hui Fang
Hui Shen
author_facet Xuekun Gong
Zhuang-Hua Liu
Qinghua Xu
Lin Wang
Qingxiang Guo
Jian Zhang
Qiao-Hong Li
Wei-Hui Fang
Hui Shen
author_sort Xuekun Gong
collection DOAJ
description The detailed elucidation of structure–property relationships at the molecular level in metal nanoclusters is highly valuable for advancing structure design and optimizing performance. However, effectively manipulating metal nanoclusters’ physical and chemical properties at the single-molecule level remains a significant challenge. Here, we demonstrate that single-molecule chemistry can effectively control the third-order nonlinear optical (NLO) performance of structurally precise copper nanoclusters. We present two analogous clusters, [Cu25(RS)18H10]3− (Cu25) and [Cu26(RS)18H10(PPh3)]2− (Cu26, where RSH is 2-fluorobenzenethiol), whose structures were determined in this study. Both clusters feature a Cu13 core in a centered cuboctahedron configuration with similar shell structures. However, Cu26 includes an additional PPh3Cu+ unit. This single structural difference significantly changes their properties, including optical characteristics and stability. Compared to Cu25, Cu26 exhibits enhanced optical limiting (OL) activity. Theoretical calculations indicate that the substantial electron transfer from the PPh3 ligand to the metal core enhances the NLO performance of Cu26. This study highlights the potential of structurally precise copper nanoclusters as OL materials and advances the understanding of nanoparticulate material fabrication using a single-molecule strategy.
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issn 2957-9821
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publishDate 2025-03-01
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series Polyoxometalates
spelling doaj-art-6f625015e37b47fb97867bada7a15f322025-01-24T08:12:25ZengTsinghua University PressPolyoxometalates2957-98212957-95032025-03-0141914007210.26599/POM.2024.9140072Single-molecule manipulation of copper nanoclusters for modulating nonlinear opticsXuekun Gong0Zhuang-Hua Liu1Qinghua Xu2Lin Wang3Qingxiang Guo4Jian Zhang5Qiao-Hong Li6https://orcid.org/0000-0001-9286-3580Wei-Hui Fang7https://orcid.org/0000-0003-3358-3057Hui Shen8https://orcid.org/0000-0003-4800-437XCollege of Energy Materials and Chemistry, Inner Mongolia University, Hohhot 010021, ChinaState Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, ChinaCollege of Energy Materials and Chemistry, Inner Mongolia University, Hohhot 010021, ChinaState Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, ChinaCollege of Chemical Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaState Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, ChinaState Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, ChinaState Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, ChinaCollege of Energy Materials and Chemistry, Inner Mongolia University, Hohhot 010021, ChinaThe detailed elucidation of structure–property relationships at the molecular level in metal nanoclusters is highly valuable for advancing structure design and optimizing performance. However, effectively manipulating metal nanoclusters’ physical and chemical properties at the single-molecule level remains a significant challenge. Here, we demonstrate that single-molecule chemistry can effectively control the third-order nonlinear optical (NLO) performance of structurally precise copper nanoclusters. We present two analogous clusters, [Cu25(RS)18H10]3− (Cu25) and [Cu26(RS)18H10(PPh3)]2− (Cu26, where RSH is 2-fluorobenzenethiol), whose structures were determined in this study. Both clusters feature a Cu13 core in a centered cuboctahedron configuration with similar shell structures. However, Cu26 includes an additional PPh3Cu+ unit. This single structural difference significantly changes their properties, including optical characteristics and stability. Compared to Cu25, Cu26 exhibits enhanced optical limiting (OL) activity. Theoretical calculations indicate that the substantial electron transfer from the PPh3 ligand to the metal core enhances the NLO performance of Cu26. This study highlights the potential of structurally precise copper nanoclusters as OL materials and advances the understanding of nanoparticulate material fabrication using a single-molecule strategy.https://www.sciopen.com/article/10.26599/POM.2024.9140072coppercluster compoundsstructurenonlinear opticssingle molecule manipulation
spellingShingle Xuekun Gong
Zhuang-Hua Liu
Qinghua Xu
Lin Wang
Qingxiang Guo
Jian Zhang
Qiao-Hong Li
Wei-Hui Fang
Hui Shen
Single-molecule manipulation of copper nanoclusters for modulating nonlinear optics
Polyoxometalates
copper
cluster compounds
structure
nonlinear optics
single molecule manipulation
title Single-molecule manipulation of copper nanoclusters for modulating nonlinear optics
title_full Single-molecule manipulation of copper nanoclusters for modulating nonlinear optics
title_fullStr Single-molecule manipulation of copper nanoclusters for modulating nonlinear optics
title_full_unstemmed Single-molecule manipulation of copper nanoclusters for modulating nonlinear optics
title_short Single-molecule manipulation of copper nanoclusters for modulating nonlinear optics
title_sort single molecule manipulation of copper nanoclusters for modulating nonlinear optics
topic copper
cluster compounds
structure
nonlinear optics
single molecule manipulation
url https://www.sciopen.com/article/10.26599/POM.2024.9140072
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