N-Heterocyclic carbene-stabilized gold nanoparticles with tunable sizes

被引：48

作者：

Bridonneau, N. ^{[1
]}

Hippolyte, L. ^{[1
,2
]}

Mercier, D. ^{[3
]}

Portehault, D. ^{[1
]}

Desage-El Murr, M. ^{[2
]}

Marcus, P. ^{[3
]}

Fensterbank, L. ^{[2
]}

Chaneac, C. ^{[1
]}

Ribot, F. ^{[1
]}

机构：

[1] Sorbonne Univ, Coll France, CNRS, Lab Chim Matiere Condensee Paris,LCMCP, F-75005 Paris, France

[2] Sorbonne Univ, CNRS, Inst Parisien Chim Mol, IPCM, F-75005 Paris, France

[3] PSL Res Univ, CNRS, Inst Rech Chim Paris, Chim Paris Tech, F-75005 Paris, France

来源：

DALTON TRANSACTIONS | 2018年 / 47卷 / 19期

关键词：

RAY PHOTOELECTRON-SPECTROSCOPY; SELF-ASSEMBLED MONOLAYERS; IONIC LIQUIDS; X-RAY; LIGANDS; CATALYSIS; REDUCTION; SURFACES; PHASE; NANOCRYSTALS;

D O I：

10.1039/c8dt00416a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A simple and straightforward synthesis of N-heterocyclic carbene (NHC)-protected gold nanoparticles is derived from (benz)imidazolium-AuX4 complexes and NaBH4 only. The proposed method allows size tuning, from 3 to 6 nm, by adding (benz)imidazolium bromide. Changing the reducing agent to tBuNH(2)BH(3) shifts the size range to ca. 6-12 nm. A one pot protocol is also reported from AuCl, (benz)imidazolium bromides and NaBH4, thereby providing an even more straightforward way of producing NHC-capped gold nanoparticles. In addition, X-ray photoelectron spectroscopy (XPS) is used to unambiguously evidence, on the nanoparticles, the covalent bond formed between the NHC and the surface gold atoms.

引用

页码：6850 / 6859

页数：10

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