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Fluorescent Gold Nanoclusters with Interlocked Staples and a Fully Thiolate-Bound Kernel 期刊论文

编号：

4b2f27bf-5cc9-4143-ac37-2758f19ddcee
作者：

Gan, Zibao^[1] Lin, Yuejian^[2] Luo, Lun^[3] Han, Guangmei^[4] Liu, Wei^[5] Liu, Zhengjie^[4] Yao, Chuanhao^[1] Weng, Linhong^[2] Liao, Lingwen^[1] Chen, Jishi^[1] Liu, Xu^[1] Luo, Yi^[3] Wang, Chengming^[6] Wei, Shiqiang^[5] Wu, Zhikun^[1]
语种：

英文
期刊：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION ISSN：1433-7851 2016 年 55 卷 38 期 (11567 - 11571) ; SEP 12
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关键词：

fluorescence gold nanoclusters synthetic methods
摘要：

The structural features that render gold nanoclusters intrinsically fluorescent are currently not well understood. To address this issue, highly fluorescent gold nanoclusters have to be synthesized, and their structures must be determined. We herein report the synthesis of three fluorescent Au-24(SR)(20) nanoclusters (R=C2H4Ph, CH2Ph, or (CH2C6H4Bu)-Bu-t). According to UV/Vis/NIR, differential pulse voltammetry (DPV), and X-ray absorption fine structure (XAFS) analysis, these three nanoclusters adopt similar structures that feature a bi-tetrahedral Au-8 kernel protected by four tetrameric Au-4(SR)(5) motifs. At least two structural features are responsible for the unusual fluorescence of the Au-24(SR)(20) nanoclusters: Two pairs of interlocked Au-4(SR)(5) staples reduce the vibration loss, and the interactions between the kernel and the thiolate motifs enhance electron transfer from the ligand to the kernel moiety through the Au-S bonds, thereby enhancing the fluorescence. This work provides some clarification of the structure-fluorescence relationship of such clusters.
推荐引用方式
GB/T 7714：

Gan Zibao,Lin Yuejian,Luo Lun, et al. Fluorescent Gold Nanoclusters with Interlocked Staples and a Fully Thiolate-Bound Kernel [J].ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2016,55(38):11567-11571.
APA：

Gan Zibao,Lin Yuejian,Luo Lun,Han Guangmei,&Wu Zhikun.(2016).Fluorescent Gold Nanoclusters with Interlocked Staples and a Fully Thiolate-Bound Kernel .ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,55(38):11567-11571.
MLA：

Gan Zibao, et al. "Fluorescent Gold Nanoclusters with Interlocked Staples and a Fully Thiolate-Bound Kernel" .ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 55,38(2016):11567-11571.

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