Supramolecular metallacycle-assisted interfacial self-assembly: A promising method of fabricating gold nanoparticle monolayers with precise interparticle spacing for tunable SERS activity

被引：5

作者：

Wu, Gui-Yuan ^{[1
,2
]}

Zheng, Wei ^{[3
]}

Yang, Xiao-Lei ^{[1
]}

Liu, Quan-Jia ^{[1
]}

Cheng, Lin ^{[1
]}

机构：

[1] Anhui Normal Univ, Coll Chem & Mat Sci, Key Lab Funct Mol Solids, Anhui Lab Mol Based Mat,Minist Educ China, Wuhu 241000, Peoples R China

[2] Anhui Normal Univ, Sch Phys & Elect Informat, Anhui Prov Key Lab Optoelect Mat Sci & Technol, Wuhu 241000, Peoples R China

[3] Nagoya Univ, Grad Sch Engn, Dept Mol & Macromol Chem, Nagoya, Aichi 4648603, Japan

来源：

TETRAHEDRON LETTERS | 2022年 / 94卷

关键词：

Interfacial self-Assembly; Metallacycle; Au nanoparticles; Surface Enhanced Raman Scattering; DISCRETE ORGANOPLATINUM(II) METALLACYCLES;

D O I：

10.1016/j.tetlet.2022.153716

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Herein, we report a facial approach for the self-assembly of Au NP at the water-oil interface into a largescale well-ordered, uniform-sized monolayer film with precise and tunable size of interparticle spacings and easily transferable properties. As a demonstration, a series of oil-soluble metallacycles containing disulfide end groups and water-soluble Au NPs with different size are employed. Supramolecular metallacycle-assisted interfacial self-assembly can be implemented by S-Au and electrostatic interaction at the water-dichloromethane interface to obtain Au NP monolayer films. The interparticle spacing of such monolayer films can be well-tuned by simply changing the size of the metallacycles. More importantly, the as-prepared monolayer film showed amphiphilic nature and could be easily transferred to a solid substrate for use as a suitable SERS substrate. It is highly anticipated that this work will provide a facile and general approach to realize control over self-assembly of Au NPs into well-defined nanostructures and pave a way to explore new nanomaterials with numerous plasmon-based applications. (c) 2022 Elsevier Ltd. All rights reserved.

引用

页数：6