Volume 39, Issue 1 pp. 81-86
Concise Report

Luminescence Regulation of Silver-Thiolate Clusters Protected by 1,2-Dithiolate-o-carborane

Li-Juan Liu

Li-Juan Liu

College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001 China

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Thomas C. W. Mak

Thomas C. W. Mak

College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001 China

Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, China

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Shuang-Quan Zang

Corresponding Author

Shuang-Quan Zang

College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001 China

E-mail: [email protected]Search for more papers by this author
First published: 06 July 2020
Citations: 17

Main observation and conclusion

Engineering the surface of the metal clusters with the core structure maintained and tuning their luminescence in a wide range is still a challenge in the nanomaterial research. We modified six mono-pyridyl ligands with different electronic effects (conjugation effect or induction effect) on a superatomic silver cluster [Ag14(C2B10H10S2)6(CH3CN)8] (denoted as Ag14) through in situ site-specific surface engineering, and obtained the corresponding clusters [Ag14(C2B10H10S2)6(CH3CN)6(L1/L2)2] (denoted as NC-1, 2, L1/L2 = 4-acetylpyridine/ 4-carboxypyridine) and [Ag14(C2B10H10S2)6(L3/L4/L5/L6)8] (denoted as NC-3, 4, 5, 6, L3/L4/L5/L6 = 4-phenylpyridine/4-(1-naphthyl)pyridine/9-(4-pyridine)anthracene/9-(4-pyridine)pyrene). Through the modification of the Ag14 cluster, a wide-range luminescence from blue to red was realized. This work might provide a practical guide for improving the emission performance of metal clusters via surface engineering.

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