A disulfur ligand stabilization approach to construct a silver(i)-cluster-based porous framework as a sensitive SERS substrate

被引：19

作者：

Wu, Tong ^{[1
,4
]}

Yin, Di ^{[1
]}

Hu, Xun ^{[1
]}

Yang, Bo ^{[4
]}

Liu, Hong ^{[1
,4
]}

Xie, Yun-Peng ^{[3
]}

Liu, Shi-Xi ^{[2
]}

Ma, Lulu ^{[1
]}

Gao, Guang-Gang ^{[1
,4
]}

机构：

[1] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Shandong, Peoples R China

[2] Yunnan Univ, Sch Chem Sci & Technol, Kunming 650091, Yunnan, Peoples R China

[3] Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, Wuhan 430074, Hubei, Peoples R China

[4] Jiamusi Univ, Coll Pharm, Jiamusi 154007, Peoples R China

来源：

NANOSCALE | 2019年 / 11卷 / 35期

基金：

中国国家自然科学基金;

关键词：

ENHANCED RAMAN-SPECTROSCOPY; SINGLE-MOLECULE; METAL NANOCLUSTERS; SILVER; CLUSTER; NANOPARTICLES; ARRAYS;

D O I：

10.1039/c9nr05301h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An atomically-precise silver(i)-cluster-based three-dimensional (3D) framework (UJN-1) stabilized by a ditiocarb (diethyldithiocarbamate) ligand has been unveiled for the first time by self-assembly. UJN-1 is composed of both Ag-9 clusters and Ag-5 subunits, of which the Ag-9 clusters are bonded with Ag-5 subunits by sharing the ditiocarb ligand to form a microporous 3,4-connected topological framework. The chemically reduced nano-sized derivative of UJN-1 exhibits highly sensitive surface enhanced Raman scattering (SERS) towards 4-mercaptobenzoic acid (4-MBA) signal molecules, which is ascribed to the porosity as well as the distribution of abundant crystalline Ag-0 active sites. This work sheds light on a new bottom-up approach to construct SERS-active silver(i)-cluster-based 3D materials by disulfur ligand stabilization.

引用

页码：16293 / 16298

页数：6

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