X-Ray crystal structure, and optical and electrochemical properties of the Au15Ag3(SC6H11)14 nanocluster with a core-shell structure.
We report the X-ray crystallographic structure of an 18-metal atom Au-Ag bimetallic nanocluster (NC) formulated as [Au15Ag3(SC6H11)14]. This NC consists of a Au6Ag3 bi-octahedral kernel, which is built up by two octahedral Au3Ag3 units through sharing one Ag3 triangular face. The [Au15Ag3(SC6H11)14] can be viewed as a core-shell structure with the doped Ag atoms as the core and Au atoms as the shell. Detailed analyses by UV-vis spectroscopy, X-ray photoelectron spectroscopy (XPS), and electrochemical measurements clearly show distinct differences in the electronic structure between [Au15Ag3(SC6H11)14] and the homometal [Au18(SC6H11)14] NC. This study contributes to the deep understanding on bimetallic nanoclusters.
Department of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui Province 230601, P. R. China. peng-li@ahu.edu.cn zmz@ahu.edu.cn.
Ji
J
Xiang
Department of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui Province 230601, P. R. China. peng-li@ahu.edu.cn zmz@ahu.edu.cn.
Peng
P
Li
Department of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui Province 230601, P. R. China. peng-li@ahu.edu.cn zmz@ahu.edu.cn.
Yongbo
Y
Song
Department of Chemistry, Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Hunan Province 411105, P. R. China. ypnku78@gmail.com.
Xia
X
Liu
Department of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui Province 230601, P. R. China. peng-li@ahu.edu.cn zmz@ahu.edu.cn.
Hanbao
H
Chong
Department of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui Province 230601, P. R. China. peng-li@ahu.edu.cn zmz@ahu.edu.cn.
Shan
S
Jin
Department of Chemistry, Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Hunan Province 411105, P. R. China. ypnku78@gmail.com.
Yong
Y
Pei
Department of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui Province 230601, P. R. China. peng-li@ahu.edu.cn zmz@ahu.edu.cn.
Xiaoyou
X
Yuan
Department of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui Province 230601, P. R. China. peng-li@ahu.edu.cn zmz@ahu.edu.cn.
Manzhou
M
Zhu