title: A 5-(difluorenyl)-1,10-phenanthroline-based Ru(II) complex as a coating agent for potential multifunctional gold nanoparticles.
abstract: The synthesis and photophysical properties of small gold nanoparticles (NPs, AuNP-[Ru-PFF]) surface functionalized by 5-substituted-1,10-phenanthroline-ligand based Ru(II) complexes are described. Luminescence of the grafted and confined Ru(II) complexes is totally quenched on the gold surface. Nonlinear optical properties were determined via Z-scan measurements in the range 600-1300 nm for both the free Ru(II) complex and the related NPs. In the short wavelength range (around 600 nm) the behaviour switches from that of two-photon absorption (2PA) for the complex to saturable absorption for the NPs. 2PA applications such as optical power limiting or two-photon dioxygen sensitization can be anticipated for these nanoplatforms.
authors.affiliation: Institut de Chimie Moléculaire de Reims, UMR CNRS n° 7312, Reims Champagne-Ardenne University, Moulin de la Housse - BP 1039, 51687 Reims Cedex 2, France. gilles.lemercier@univ-reims.fr.
authors.forename: Juliette
authors.initials: J
authors.lastname: Moreau
authors.forename: François
authors.initials: F
authors.lastname: Lux
authors.forename: Mickaël
authors.initials: M
authors.lastname: Four
authors.forename: Joanna
authors.initials: J
authors.lastname: Olesiak-Banska
authors.forename: Katarzyna
authors.initials: K
authors.lastname: Matczyszyn
authors.forename: Pascal
authors.initials: P
authors.lastname: Perriat
authors.forename: Céline
authors.initials: C
authors.lastname: Frochot
authors.forename: Philippe
authors.initials: P
authors.lastname: Arnoux
authors.forename: Olivier
authors.initials: O
authors.lastname: Tillement
authors.forename: Marek
authors.initials: M
authors.lastname: Samoc
authors.forename: Glauco
authors.initials: G
authors.lastname: Ponterini
authors.forename: Stéphane
authors.initials: S
authors.lastname: Roux
authors.forename: Gilles
authors.initials: G
authors.lastname: Lemercier
mesh_terms: D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D010316:Particle Size; D010618:Phenanthrolines / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry*; D013499:Surface Properties
chemical_list: C000597491:5-(difluorenyl)-1,10-phenanthroline; D009942:Organometallic Compounds; D010618:Phenanthrolines; D006046:Gold; D012428:Ruthenium