title: Water-soluble metal nanoparticles with PEG-tagged 15-membered azamacrocycles as stabilizers.
abstract: The synthesis of palladium, platinum and ruthenium nanoparticles stabilized by azamacrocycles bearing polyoxyethylenated chains has been achieved by decomposition of the corresponding organometallic precursors (Pd(dba)(2), Pt(2)(dba)(3) and Ru(COD)(COT)) under dihydrogen atmosphere, whereas gold and rhodium nanoparticles have been obtained in the presence of these ligands by reduction of HAuCl(4) and RhCl(3), respectively. The metal nanoparticles were characterized by several techniques including IR, NMR, UV-vis, HRTEM, ED, and elemental analysis. The Pd nanoparticles have been used as recoverable catalyst in Suzuki cross-coupling in aqueous medium.
authors.affiliation: Department of Chemistry, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193, Barcelona, Spain.
authors.forename: Nereida
authors.initials: N
authors.lastname: Mejías
authors.forename: Anna
authors.initials: A
authors.lastname: Serra-Muns
authors.forename: Roser
authors.initials: R
authors.lastname: Pleixats
authors.forename: Alexandr
authors.initials: A
authors.lastname: Shafir
authors.forename: Mar
authors.initials: M
authors.lastname: Tristany