A series of gold nanoparticies (AuNPs) stabilized by monodentate, bidentate, and tridentate thiolate calix[n]arene ligands 1-3 was prepared by using the Brust Schiffrin two-phase direct synthesis and characterized with NMR spectroscopy, elemental analysis, transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The experimental data show that the particular multidentate structure of calix[n]arene derivatives 2 and 3 introduces a control element in the preparation of the gold nanoparticles that allows, in the particular experimental conditions here reported, to obtain very small (approximate to 1 nm) AuNPs. These are the first experimental findings that identify a role of ligand "denticity" in the determination of the nuclearity of nanoparticles.

The Effect of Ligand Denticity in Size-Selective Synthesis of Calix[n]arene-Stabilized Gold Nanoparticles: A Multitechnique Approach

Rossi F;
2010

Abstract

A series of gold nanoparticies (AuNPs) stabilized by monodentate, bidentate, and tridentate thiolate calix[n]arene ligands 1-3 was prepared by using the Brust Schiffrin two-phase direct synthesis and characterized with NMR spectroscopy, elemental analysis, transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The experimental data show that the particular multidentate structure of calix[n]arene derivatives 2 and 3 introduces a control element in the preparation of the gold nanoparticles that allows, in the particular experimental conditions here reported, to obtain very small (approximate to 1 nm) AuNPs. These are the first experimental findings that identify a role of ligand "denticity" in the determination of the nuclearity of nanoparticles.
2010
Istituto dei Materiali per l'Elettronica ed il Magnetismo - IMEM
Istituto Nanoscienze - NANO
multidisciplinary chemistry
transmission electron microscopy
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/151388
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