Jump to main content
Jump to site search

Issue 22, 2012
Previous Article Next Article

Weakly-coordinated stable platinum nanocrystals

Author affiliations


Stable platinum nanocrystals with small diameters (1.0–2.3 nm), that are stable for a long time, with narrow size distributions were easily and reproducibly prepared without any additional stabilizers in glycol, glycerol, the ionic liquids (ILs) 1-n-butyl-3-methyl-imidazolium tetrafluoroborate [BMIm][BF4] and N-butyl-N-trimethyl-ammonium bis(trifluoromethylsulfonyl)imide [N4111][NTf2] or diphenylmethane (CH2Ph2) by thermal, photolytic or microwave assisted decomposition of the organometallic precursor methylcyclopentadienyl-trimethylplatinum(IV), (MeCp)PtMe3. Decomposition of the easily dispensible, air and moisture stable organometallic Pt(IV) precursor (MeCp)PtMe3 leads to well defined, small, crystalline and longterm stable Pt-nanoparticle (Pt-NP) dispersions without any additional surface-capping ligands. The Pt-NP/IL dispersion was shown to be a highly active catalyst (TOF 96 000 h−1 at 0.0125 mol% Pt and quantitative conversion) for the biphasic hydrosilylation of phenylacetylene with triethylsilane, to the distal and proximal products triethyl(2- and1-phenylvinyl)silane.

Graphical abstract: Weakly-coordinated stable platinum nanocrystals

  • This article is part of the themed collection: Nanocrystals
Back to tab navigation

Supplementary files

Publication details

The article was received on 06 Jun 2012, accepted on 20 Aug 2012 and first published on 21 Aug 2012

Article type: Paper
DOI: 10.1039/C2CE25904D
Citation: CrystEngComm, 2012,14, 7607-7615
  •   Request permissions

    Weakly-coordinated stable platinum nanocrystals

    D. Marquardt, J. Barthel, M. Braun, C. Ganter and C. Janiak, CrystEngComm, 2012, 14, 7607
    DOI: 10.1039/C2CE25904D

Search articles by author