Ultrasmall NHC-coated gold nanoparticles obtained through solvent free thermolysis of organometallic Au(i) complexes

  1. Crespo, J. 1
  2. Guari, Y. 2
  3. Ibarra, A. 3
  4. Larionova, J. 2
  5. Lasanta, T. 1
  6. Laurencin, D. 2
  7. López-De-Luzuriaga, J.M. 1
  8. Monge, M. 1
  9. Olmos, M.E. 1
  10. Richeter, S. 2
  1. 1 Universidad de La Rioja

    Universidad de La Rioja

    Logroño, España

    GRID grid.119021.a

  2. 2 University of Montpellier

    University of Montpellier

    Montpellier, Francia

    GRID grid.121334.6

  3. 3 Universidad de Zaragoza

    Universidad de Zaragoza

    Zaragoza, España

    GRID grid.11205.37

Dalton Transactions

ISSN: 1477-9226

Year of publication: 2014

Volume: 43

Issue: 42

Pages: 15713-15718

Type: Article

Export: RIS
DOI: 10.1039/c4dt02160f SCOPUS: 2-s2.0-84908389537 WoS: 000343958900007 GOOGLE SCHOLAR


Cited by

  • Scopus Cited by: 40 (20-09-2021)

Journal Citation Reports

  • Year 2014
  • Journal Impact Factor: 4.197
  • Best Quartile: Q1
  • Area: CHEMISTRY, INORGANIC & NUCLEAR Quartile: Q1 Rank in area: 6/45 (Ranking edition: SCIE)

SCImago Journal Rank

  • Year 2014
  • SJR Journal Impact: 1.389
  • Best Quartile: Q1
  • Area: Inorganic Chemistry Quartile: Q1 Rank in area: 9/74


  • Year 2014
  • CiteScore of the Journal : 6.6
  • Area: Inorganic Chemistry Percentile: 91
  • Area: Medicine (all) Percentile: 84


Ultrasmall gold nanoparticles (Au UNPs) represent a unique class of nanomaterials making them very attractive for certain applications. Herein, we developed an organometallic approach to the synthesis of Au UNPs stabilized with the C18H37-NHC ligand by the solvent free thermolysis of [RMIM][Au(C6F5)2] (1) or [Au(C6F5)(RNHC)] (3) (with R = C18H37-), by controlling the reactivity of pentafluorophenyl ligands as deprotonating or reductive elimination agents; Au UNPs can be achieved by solvent free thermolysis. Pentafluorophenyl Au(i) complexes 1 and 3 are synthesized from the corresponding ionic and neutral precursors. The presence of long alkyl chain imidazolium or carbene species in the complexes makes them to behave as isotropic liquids at moderate temperatures. The use of multinuclear NMR allows the description of the mechanism of formation of the UNPs as well as the surface state of the UNPs. This journal is