Mono-cadmium vs Mono-mercury Doping of Au25 Nanoclusters

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• 作者：Chuanhao Yao ; Yue-jian Lin ; Jinyun Yuan ; Lingwen Liao ; Min Zhu ; Lin-hong Weng ; Jinlong Yang ; Zhikun Wu
• 刊名：Journal of the American Chemical Society
• 出版年：2015
• 出版时间：December 16, 2015
• 年：2015
• 卷：137
• 期：49
• 页码：15350-15353
• 全文大小：328K
• ISSN：1520-5126

文摘

Controlling the dopant type, number, and position in doped metal nanoclusters (nanoparticles) is crucial but challenging. In the work described herein, we successfully achieved the mono-cadmium doping of Au₂₅ nanoclusters, and revealed using X-ray crystallography in combination with theoretical calculations that one of the inner-shell gold atoms of Au₂₅ was replaced by a Cd atom. The doping mode is distinctly different from that of mono-mercury doping, where one of the outer-shell Au atoms was replaced by a Hg atom. Au₂₄Cd is readily transformed to Au₂₄Hg, while the reverse (transformation from Au₂₄Hg to Au₂₄Cd) is forbidden under the investigated conditions.