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Gledison S. Fonseca, Alexandre P. Umpierre, Paulo F. P. Fichtner, Sergio R. Teixeira and Jairton Dupont The Use of Imidazolium Ionic Liquids for the Formation and Stabilization of Ir0 and Rh0 Nanoparticles: Efficient Catalysts for the Hydrogenation of Arenes Chemistry - A European Journal 9

Article first published online: 11 JUL 2003 | DOI: 10.1002/chem.200304753

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Ir0and Rh0nanoparticles of 2–3 nm diameter with a narrow size distribution can be synthesized in a straightforward manner by using a one-component liquid phase, namely 1-n-butyl-3-methylimidazolium hexafluorophosphate ionic liquid, by reduction with molecular hydrogen of standard metal salts. The nanomaterials formed efficiently promote the homogeneous, liquid–liquid two-phase or “solventless” hydrogenation of arenes under mild reaction conditions.

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