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Issue 15, 2008
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Use of ionic liquids (ILs) for the IL-anion size-dependent formation of Cr, Mo and W nanoparticles from metal carbonyl M(CO)6 precursors

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Abstract

Stable chromium, molybdenum and tungsten nanoparticles are obtained reproducibly by thermal or photolytic decomposition under argon from mononuclear metal carbonyl precursors M(CO)6 (M = Cr, Mo, W) suspended in the ionic liquids BMim+BF4, BMim+OTf and BtMA+Tf2N (BMim+ = n-butyl-methyl-imidazolium, BtMA+ = n-butyl-trimethyl-ammonium, Tf2N = N(O2SCF3)2, OTf = O3SCF3) with a very small and uniform size of 1 to 1.5 nm in BMim+BF4 which increases with the molecular volume of the ionic liquid anion to ∼100 nm in BtMA+Tf2N [characterization by transmission electron microscopy (TEM), dynamic light scattering and transmission electron diffraction (TED) analysis].

Graphical abstract: Use of ionic liquids (ILs) for the IL-anion size-dependent formation of Cr, Mo and W nanoparticles from metal carbonyl M(CO)6 precursors

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Publication details

The article was received on 22 Nov 2007, accepted on 03 Mar 2008 and first published on 14 Mar 2008


Article type: Communication
DOI: 10.1039/B718055A
Citation: Chem. Commun., 2008, 1789-1791
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    Use of ionic liquids (ILs) for the IL-anion size-dependent formation of Cr, Mo and W nanoparticles from metal carbonyl M(CO)6 precursors

    E. Redel, R. Thomann and C. Janiak, Chem. Commun., 2008, 1789
    DOI: 10.1039/B718055A

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