Small Arenethiol Passivated Gold Nanoparticles (Articolo in rivista)

Type
Label
  • Small Arenethiol Passivated Gold Nanoparticles (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/jp056995v (literal)
Alternative label
  • Michael Busby; Claudio Chiorboli; Franco Scandola (2006)
    Small Arenethiol Passivated Gold Nanoparticles
    in The journal of physical chemistry. B
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Michael Busby; Claudio Chiorboli; Franco Scandola (literal)
Pagina inizio
  • 6020 (literal)
Pagina fine
  • 6026 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 110 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dipartimento di Chimica, UniVersita` di Ferrara, and INSTM, Sezione di Ferrara, 44100 Ferrara, Italy, and ISOF-CNR, Sezione di Ferrara, 44100 Ferrara, Italy (literal)
Titolo
  • Small Arenethiol Passivated Gold Nanoparticles (literal)
Abstract
  • Novel gold nanoparticles, passivated by monolayers of benzenethiol, biphenylthiol, and similar derivatives, have been synthesized and characterized using UV/vis, NMR, and Fourier transform infrared (FTIR) spectroscopies. The nanoparticle sizes have been evaluated using transmission electron microscopy and UV/vis spectroscopy; they show diameters between 2.1 and 4.7 nm, depending on the method of synthesis and the monolayer protecting group. Femtosecond transient absorption measurements show that the nanoparticles possess optical properties on the boundary between molecular and nanoparticle behavior. The smaller systems based on benzenethiol exhibit long-lived excited states with lifetimes on the order of a few nanoseconds, resembling those of small gold molecular type clusters. The larger nanoparticles protected with biphenylthiol and benzylthiol groups relax much more rapidly on a picosecond time scale, similarly to related citrate stabilized systems reported in the literature. (literal)
Prodotto di
Autore CNR

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