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605151 
Journal Article 
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 
Engelbert, R; Ralf, T; Christoph, J 
2008 
2008 
15 
1789-1791 
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]. [ABSTRACT FROM AUTHOR] Copyright of Chemical Communications: Chem Comm is the property of Royal Society of Chemistry and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts) 
IONIC liquids; NANOPARTICLES; ARGON; METAL carbonyls