Carbosilane dendrons as stabilizing agents for the formation of gold nanoparticles

被引：15

作者：

Gonzalez de Rivera, Ferran ^{[1
]}

Rodriguez, Lara-Isabel ^{[1
]}

Rossell, Oriol ^{[1
]}

Seco, Miquel ^{[1
]}

Divins, Nuria J. ^{[2
,3
]}

Casanova, Ignasi ^{[2
,3
]}

Llorca, Jordi ^{[2
,3
]}

机构：

[1] Univ Barcelona, Dept Quim Inorgan, E-08028 Barcelona, Spain

[2] Univ Politecn Cataluna, Inst Tecn Energet, E-08028 Barcelona, Spain

[3] Univ Politecn Cataluna, Ctr Recerca Nanoenginyeria, E-08028 Barcelona, Spain

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2011年 / 696卷 / 11-12期

关键词：

Carbosilane dendron; Gold; Nanoparticle; Thiol; CORED DENDRIMERS; FOCAL POINT; SIZE; COMPLEXES; FUNCTIONALIZATION; NANOCOMPOSITES; DEPENDENCE; ANIONS; H2PO4; SHAPE;

D O I：

10.1016/j.jorganchem.2010.12.007

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis and characterization of two new carbosilane dendrons functionalized in the focal point with a single thiol group is described. These molecules were used as stabilizing agents for the formation of gold nanoparticles. These materials were obtained by the reduction of hydrogen tetrachloroaurate phase-transferred into toluene in the presence of the carbosilane dendrons. The gold nanoparticle-cored dendrons (NCDs) were characterized by TEM, XPS, AFM, IR, UV, and NMR techniques. Average particle diameter ranged from 2.5 to 2.6 nm with narrow size distribution and remarkable stability; in particular, the elimination of the protecting shells to give naked gold, after NCDs deposition on a support, is more difficult using carbosilane dendrons than in the case of conventional dodecanethiol-protected gold nanoparticles. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2287 / 2293

页数：7

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