Postformation Modification of SAMs: Using Click Chemistry to Functionalize Organic Surfaces
| Autor: | Tobias Winkler, Christof Wöll, Tim Klasen, Andreas Terfort, Nils Metzler-Nolte, Daniel Käfer, Rolf Chelmowski, Stephan David Köster |
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| Rok vydání: | 2009 |
| Předmět: |
chemistry.chemical_classification
Chemistry Alkyne Infrared spectroscopy Surfaces and Interfaces Condensed Matter Physics Photochemistry Coupling reaction Cycloaddition chemistry.chemical_compound Ferrocene X-ray photoelectron spectroscopy Monolayer Electrochemistry Click chemistry Organic chemistry General Materials Science Spectroscopy |
| Zdroj: | Langmuir. 25:11480-11485 |
| ISSN: | 1520-5827 0743-7463 |
| DOI: | 10.1021/la9012813 |
| Popis: | We have investigated a recently established strategy of modifying organic surfaces exposed by thiolate SAMs (self-assembled monolayers) deposited on Au substrates by employing so-called click chemistry. This term is used to denote a modified Huisgen 1,3-dipolar cycloaddition. We demonstrate the potential of this method by coupling ferrocene and azido acetic acid to alkyne/azide-terminated SAMs. After the surface reaction, the modified organic monolayers were analyzed using infrared spectroscopy (IR), X-ray photoelectron spectroscopy (XPS), and near-edge X-ray absorption fine structure (NEXAFS) spectroscopy. Under the conditions used in this study, only for the azide-terminated SAMs could successful grafting of the ferrocene be achieved whereas for the alkyne-terminated SAMs the spectroscopic studies reveal a rather low yield of the coupling reaction. |
| Databáze: | OpenAIRE |
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