作者
Maria Şologan, Domenico Marson, Stefano Polizzi, Paolo Pengo, Silvia Boccardo, Sabrina Pricl, Paola Posocco, Lucia Pasquato
发表日期
2016/10/25
期刊
ACS nano
卷号
10
期号
10
页码范围
9316-9325
出版商
American Chemical Society
简介
The spontaneous self-organization of dissimilar ligands on the surface of metal nanoparticles is a very appealing approach to obtain anisotropic “spherical” systems. In addition to differences in ligand length and end groups, a further thermodynamic driving force to control the self-assembled monolayer organization may become available if the ligands are inherently immiscible, as is the case of hydrogenated (H-) and fluorinated (F-) species. Here, we validate the viability of this approach by combining 19F NMR experiments and multiscale molecular simulations on large sets of mixed-monolayer-protected gold nanoparticles (NPs). The phase segregation of blends of F- and H-thiolates grafted on the surface of gold NPs allows a straightforward approach to patterned mixed monolayers, with the shapes of the monolayer domains being encoded in the structure of the F/H-thiolate ligands. The results obtained from this …
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