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Chuanhao Yao Cong‐Qiao Xu In‐Hyeok Park Meng Zhao Ziyu Zhu Jing Li Xiao Hai Hanyan Fang Yong Zhang Gennevieve Macam Jinghua Teng Lin Li Qing‐Hua Xu Feng‐Chuan Chuang Junpeng Lu Chenliang Su Jun Li Jiong Lu 《Angewandte Chemie (International ed. in English)》2020,59(21):8270-8276
Ligand‐induced surface restructuring with heteroatomic doping is used to precisely modify the surface of a prototypical [Au25(SR1)18]? cluster ( 1 ) while maintaining its icosahedral Au13 core for the synthesis of a new bimetallic [Au19Cd3(SR2)18]? cluster ( 2 ). Single‐crystal X‐ray diffraction studies reveal that six bidentate Au2(SR1)3 motifs (L2) attached to the Au13 core of 1 were replaced by three quadridentate Au2Cd(SR2)6 motifs (L4) to create a bimetallic cluster 2 . Experimental and theoretical results demonstrate a stronger electronic interaction between the surface motifs (Au2Cd(SR2)6) and the Au13 core, attributed to a more compact cluster structure and a larger energy gap of 2 compared to that of 1 . These factors dramatically enhance the photoluminescence quantum efficiency and lifetime of crystal of the cluster 2 . This work provides a new route for the design of a wide range of bimetallic/alloy metal nanoclusters with superior optoelectronic properties and functionality. 相似文献
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Dr. Chuanhao Yao Dr. Cong-Qiao Xu Dr. In-Hyeok Park Dr. Meng Zhao Ziyu Zhu Dr. Jing Li Dr. Xiao Hai Hanyan Fang Yong Zhang Gennevieve Macam Dr. Jinghua Teng Dr. Lin Li Dr. Qing-Hua Xu Prof. Feng-Chuan Chuang Dr. Junpeng Lu Dr. Chenliang Su Prof. Jun Li Dr. Jiong Lu 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2020,132(21):8347-8353
Ligand-induced surface restructuring with heteroatomic doping is used to precisely modify the surface of a prototypical [Au25(SR1)18]− cluster ( 1 ) while maintaining its icosahedral Au13 core for the synthesis of a new bimetallic [Au19Cd3(SR2)18]− cluster ( 2 ). Single-crystal X-ray diffraction studies reveal that six bidentate Au2(SR1)3 motifs (L2) attached to the Au13 core of 1 were replaced by three quadridentate Au2Cd(SR2)6 motifs (L4) to create a bimetallic cluster 2 . Experimental and theoretical results demonstrate a stronger electronic interaction between the surface motifs (Au2Cd(SR2)6) and the Au13 core, attributed to a more compact cluster structure and a larger energy gap of 2 compared to that of 1 . These factors dramatically enhance the photoluminescence quantum efficiency and lifetime of crystal of the cluster 2 . This work provides a new route for the design of a wide range of bimetallic/alloy metal nanoclusters with superior optoelectronic properties and functionality. 相似文献
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