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      Diazonium Salts as Grafting Agents and Efficient Radical Hydrosilylation Initiators for Freestanding Photoluminescent Silicon Nanocrystals

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            Abstract

            The reactivity of diazonium salts towards freestanding, photoluminescent silicon nanocrystals (SiNCs) is reported. It was found that SiNCs can be functionalized with aryl groups via direct reductive grafting of the diazonium salts. Furthermore diazonium salts proved to act as efficient radical initiators for SiNC hydrosilylation. For this purpose, novel electron deficient diazonium salts, highly soluble in nonpolar solvents, were synthesized. Thus the SiNCs were functionalized with a variety of alkenes and alkynes at room temperature with short reaction times.

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            Conference
            ScienceOpen Posters
            ScienceOpen
            October 22 2014
            Article
            10.14293/P2199-8442.1.SOP-CHEM.P7JMRD.v1
            d1fe1655-b95a-418f-b7e8-0a67b5449b84

            This work has been published open access under Creative Commons Attribution License CC BY 4.0 , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Conditions, terms of use and publishing policy can be found at www.scienceopen.com .

            ISOS XVII BERLIN 2014
            History

            Chemistry
            Silicon Nanocrystal, Surface Grafting, Diazo Compounds, Hydrosilylation

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