The van der Waals Interactions of n‐Alkanethiol‐Covered Surfaces: From Planar to Curved Surfaces

The van der Waals (vdW) interactions of n‐alkanethiols (ATs) adsorbed on planar Au(111) and Au(100) surfaces and curved Au nanoparticles of different diameters are reported. By means of electrochemical measurements and molecular dynamic calculations, the increase in the average geometrical curvature...

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Detalles Bibliográficos
Autores principales: Cometto, Fernando P., Luo, Zhi, Zhao, Shun, Olmos‐Asar, Jimena A., Mariscal, Marcelo M., Ong, Quy, Kern, Klaus, Stellacci, Francesco, Lingenfelder, Magalí
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2017
Materias:
Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5767748/
https://www.ncbi.nlm.nih.gov/pubmed/29065250
http://dx.doi.org/10.1002/anie.201708735
Descripción
Sumario:The van der Waals (vdW) interactions of n‐alkanethiols (ATs) adsorbed on planar Au(111) and Au(100) surfaces and curved Au nanoparticles of different diameters are reported. By means of electrochemical measurements and molecular dynamic calculations, the increase in the average geometrical curvature of the surface influences the global interactions, that is, decreasing vdW interactions between neighboring molecules. Small NPs do not present the same electrochemical behavior as planar surfaces. The transition between nanoparticle to flat surface electrochemical response is estimated to occur at a circa 13–20 nm diameter range.

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