The transformation via surface modification of nanomaterials in the organic media is a very useful method for the preparation of unique nanocomposites. Such a strategy has been shown to provide highly active, stable, and dispersible metal nanoparticles, because the dispersibility and reactivity play a key role in catalysis, conductivity, and their optical and SERS properties.In this presentation, a new approach will be presented where silane stabilized metal nanoparticles are redecorated with new ligands in an attempt to tailor the optoelectronic properties of the nanomaterials. We will reveal that the very active silver nanoparticle weakly coordinates to a hydrosilane stabilizing agent, which undergoes stabilizing agent (surfactant) exchange reactions with nitrogen, phosphorus and oxygen containing ligands and even with other functional silans. In addition we will present first example of an exchange reaction on the surface of metallic nanoparticles with octakis-dimethylsiloxy-T8-silsesquioxane (T8) to produce unique multi functional nanocomposites.

Silane stabilized metallic nanoparticles as intermediates for surface modification reactions

248th National Meeting (2014)

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