Synthesis of fluorescent phenylethanethiolated gold nanoclusters via pseudo-AGR method

Chuanhao Yao; Shubo Tian; Lingwen Liao; Xinfeng Liu; Nan Xia; Nan Yan; Zibao Gan; Zhikun Wu

doi:10.1039/c5nr04760a

Synthesis of fluorescent phenylethanethiolated gold nanoclusters via pseudo-AGR method

Nanoscale. 2015 Oct 21;7(39):16200-3. doi: 10.1039/c5nr04760a.

Authors

Chuanhao Yao¹, Shubo Tian, Lingwen Liao, Xinfeng Liu, Nan Xia, Nan Yan, Zibao Gan, Zhikun Wu

Affiliation

¹ Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanostructures, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China. zkwu@issp.ac.cn.

PMID: 26395909
DOI: 10.1039/c5nr04760a

Abstract

It is well known that the fluorescence of metal nanoclusters is strongly dependent of the protecting ligand and reports of phenylethanethiolated metal nanoclusters with distinct fluorescence are rare. Herein, a fluorescent phenylethanethiolated gold nanocluster is synthesized using an unexpected pseudo-AGR method (AGR: anti-galvanic reduction). The cluster is precisely determined to be Au24(SC2H4Ph)20 by isotope-resolved mass spectroscopy in tandem with thermogravimetric analysis (TGA). The fluorescence comparison between Au24(SC2H4Ph)20, Au25(SC2H4Ph)18, Au38(SC2H4Ph)24 and Au144(SC2H4Ph)60 is also presented. The finding of the fluorescent phenylethanethiolated gold nanocluster in this work has important implication for future study on the fluorescence of metal nanoclusters.

Publication types

Research Support, Non-U.S. Gov't