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Growth of regular nanometric molecular arrays on a functional 2D template based on a chemical guest–host approach

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Abstract

A regular 2D array of crown molecules, which would spontaneously self-assemble into disordered molecular clusters, is obtained by exploiting a guest–host process, based on the chemical affinity between amino and carboxylic groups on a gold surface. First a carboxylic organic template is formed, which then serves as a host for amino-functionalized crown molecules. The amino-carboxylic interaction thereby drives the formation of a monolayer of guest molecules, regularly distributed at the nanometer scale, preventing their aggregation in unordered clusters observed on a bare gold surface. This method, which can be applied to other guest molecules, represents a novel route to overcome the shape-matching requirements of the standard guest–host architectures. Furthermore, it is intrinsically selective, due to the chemical nature of the anchoring process.

Graphical abstract: Growth of regular nanometric molecular arrays on a functional 2D template based on a chemical guest–host approach

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Publication details

The article was received on 27 Oct 2017, accepted on 01 Jan 2018 and first published on 02 Jan 2018


Article type: Paper
DOI: 10.1039/C7NR08017D
Citation: Nanoscale, 2018, Advance Article
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    Growth of regular nanometric molecular arrays on a functional 2D template based on a chemical guest–host approach

    Z. Feng, G. Kladnik, G. Comelli, C. Dri and A. Cossaro, Nanoscale, 2018, Advance Article , DOI: 10.1039/C7NR08017D

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