Aggregation-Induced Emission (AIE) in Ag-Au Bimetallic Nanocluster

被引：39

作者：

Jin, Shan ^{[1
]}

Liu, Wei ^{[2
]}

Hu, Daqiao ^{[1
]}

Zou, Xuejuan

Kang, Xi ^{[1
]}

Du, Wenjun ^{[1
]}

Chen, Shuang ^{[1
]}

Wei, Shiqiang ^{[2
]}

Wang, Shuxin ^{[1
]}

Zhu, Manzhou ^{[1
]}

机构：

[1] Anhui Univ, Dept Chem, Ctr Atom Engn Adv Mat, Hefei 230601, Anhui, Peoples R China

[2] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2018年 / 24卷 / 15期

关键词：

aggregation-induced emission; alloys; atomic precision; luminescence; nanoclusters; METAL NANOCLUSTERS; SILVER NANOCLUSTERS; OXIDATION CATALYSIS; NANOPARTICLES; NANOSTRUCTURES; ENHANCEMENT; PHASE;

D O I：

10.1002/chem.201800189

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Herein we report the synthesis and structure determination of a non-fluorescent Au4Ag5(dppm)(2)(SAdm)(6)-(BPh4) (dppm = bis(diphenylphosphino)methane and HSAdm = 1-adamantane mercaptan) nanocluster in methanol with extremely strong AIE when aggregating to the solid state (i.e., film or crystal). This phenomenon was rarely reported in structural determined noble metal nanoclusters. The extended X-ray absorption fine structure (EXAFS) measurement ruled out the hypothesis that the luminescence originated from the structure change in different states. Besides, the crystal structure (determined by X-ray diffraction) revealed that the tightly combined left- and right-handed enantiomers induced the strong restriction of intramolecular motions (RIM), which may have an impact on aggregation-induced emission.

引用

页码：3712 / 3715

页数：4

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