Synthesis and characterization of Au(I) and Au(III) complexes containing N-heterocyclic ligands derived from amino acids

被引：22
|
作者：
Reynoso-Esparza, Mario A. [1 ,2 ]
Rangel-Salas, Irma I. [1 ,2 ]
Aaron Peregrina-Lucano, A. [1 ,2 ]
Alvarado-Rodriguez, Jose G. [3 ]
Lopez-Dellamary-Toral, Fernando A. [4 ]
Manriquez-Gonzalez, Ricardo [4 ]
Espinosa-Macias, Maria L. [1 ,2 ]
Cortes-Llamas, Sara A. [1 ,2 ]
机构：
[1] Univ Guadalajara, Ctr Univ Ciencias Exactas & Ingn, Dept Quim, Guadalajara 44430, Jalisco, Mexico
[2] Univ Guadalajara, Ctr Univ Ciencias Exactas & Ingn, Dept Farmacobiol, Guadalajara 44430, Jalisco, Mexico
[3] Univ Autonoma Estado Hidalgo, Unidad Univ, Mineral De La Reforma 42184, Hidalgo, Mexico
[4] Univ Guadalajara, Ctr Univ Ciencias Exactas & Ingn, Dept Madera Celulosa & Papel, Zapopan 45220, Jalisco, Mexico
来源：
POLYHEDRON | 2014年 / 81卷
关键词：
NHC ligand; Gold; Water solubility; Carbene; Amino acids; IMIDAZOLIUM SALTS; REACTIVITY; HYDRATION; GOLD(I); FUTURE;
D O I：
10.1016/j.poly.2014.07.014
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A series of [Au(NHC)(2)] (1a-4a) complexes supported by NHC ligands derived from glycine, alanine, methionine and phenylalanine (1-4 respectively) were prepared via a direct transmetalation reaction of their respective silver complexes. The Au complexes were characterized by ESI-MS and NMR spectroscopy in solution. These compounds exhibit instability when the solvent is removed; they displayed a strong tendency to form colored solutions in the order 4a > 3a > 2a > 1a, which is associated with gold nanoparticles. la and 2a undergo oxidative addition of elemental bromine, yielding [Au(NHC)(2)Br-2] (1b) for la and a mixture of [Au(NHC)(2)Br-2] (2b) and [Au(NHC)Br-3] (2c) for 2a. 2b and 2c were characterized by single crystal X-ray diffraction. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：564 / 571
页数：8
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