Carbosilane dendrons as stabilizing agents for the formation of gold nanoparticles
作者:Ferran Gonzàlez de Rivera、Lara-Isabel Rodríguez、Oriol Rossell、Miquel Seco、Núria J. Divins、Ignasi Casanova、Jordi Llorca
DOI:10.1016/j.jorganchem.2010.12.007
日期:2011.6
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
描述了在焦点处具有单个硫醇基团的两个新的碳硅烷树枝状分子的合成和表征。这些分子用作形成金纳米颗粒的稳定剂。这些材料是通过在碳硅烷树枝状分子的存在下还原转移到甲苯中的四氯金酸氢盐而获得的。金纳米粒子核树突(NCDs)的特点是通过TEM,XPS,AFM,IR,UV和NMR技术。平均粒径为2.5-2.6nm,粒径分布窄,稳定性显着。特别地,与常规十二烷硫醇保护的金纳米颗粒的情况相比,使用碳硅烷树突在将NCD沉积在载体上之后消除保护壳以得到裸金更加困难。