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Multi-site coordination N-phosphanylamidine ligands as stabilizers for the synthesis of ruthenium nanoparticlesElectronic supplementary information (ESI) available: Size distribution histogram for Ru1, TEM images of N-phosphanylamidine-stabilized ruthenium nanoparticles Ru2and Ru5and their corresponding size histograms. See DOI: 10.1039/c1nj20465c

Authors :
Bronger, Raymond
Le, Thanh Dung
Bastin, Stéphanie
García-Antón, Jordi
Citadelle, Cécilia
Chaudret, Bruno
Lecante, Pierre
Igau, Alain
Philippot, Karine
Source :
New Journal of Chemistry. Oct2011, Vol. 35 Issue 11, p2653-2660. 8p.
Publication Year :
2011

Abstract

The stabilization of ruthenium nanoparticles is achieved by using for the first time multiple donor coordination site-type ligands, the N-phosphanylamidines . These ligands, in which the donor sites are directly connected to one another, lead to the formation of small ruthenium nanoparticles in the size range 1.7–3.1 nm that display narrow size distributions and a hexagonal close packed crystalline structure of ruthenium bulk. The characterization of these new samples by a combination of techniques gives information on the surface state of the particles such as the coordination mode of the ligand and the presence of hydrides. CO molecules can also coordinate suggesting that the surface of the particles is not saturated. This work confirms the interest of screening novel ligands for the synthesis of metal nanoparticles and more particularly, of studying their coordination to probe metal nanoparticles' surface properties. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
11440546
Volume :
35
Issue :
11
Database :
Academic Search Index
Journal :
New Journal of Chemistry
Publication Type :
Academic Journal
Accession number :
66889753
Full Text :
https://doi.org/10.1039/c1nj20465c