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Monofunctionalized gold nanoparticles stabilized by a single dendrimer form dumbbell structures upon homocoupling

Hermes, Jens Peter and Sander, Fabian and Fluch, Ulrike and Peterle, Torsten and Thompson, Damien and Urbani, Raphael and Pfohl, Thomas and Mayor, Marcel. (2012) Monofunctionalized gold nanoparticles stabilized by a single dendrimer form dumbbell structures upon homocoupling. Journal of the American Chemical Society, 134 (36). pp. 14674-14677.

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Official URL: http://edoc.unibas.ch/dok/A6031554

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Abstract

The assembly of dumbbell structures as organic-inorganic hybrid materials is presented. Gold nanoparticles (NPs) with a mean diameter of 1.3 nm were synthesized in very good yields using a stabilizing dendrimer based on benzylic thioether subunits. The extended dendritic ligand covers the NP surface and contains a peripheral protected acetylene, providing coated and monofunctionalized NPs. These NPs themselves can be considered as large molecules, and thus, applying a wet-chemical deprotection/oxidative acetylene coupling protocol exclusively provides dimers of NPs interlinked by a diethynyl bridge. The concept not only enables access to novel organic/inorganic hybrid architectures but also promises new approaches in labeling technology.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Biophysikalische Chemie (Pfohl)
05 Faculty of Science > Departement Chemie > Chemie > Molecular Devices and Materials (Mayor)
UniBasel Contributors:Mayor, Marcel and Hermes, Jens and Pfohl, Thomas and Sander, Fabian and Urbani, Raphael and Fluch, Ulrike
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Chemical Society
ISSN:0002-7863
e-ISSN:1520-5126
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:05 Apr 2017 10:34
Deposited On:08 Nov 2012 16:17

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