849766-04-7Relevant articles and documents
Preparation and characterization of gold nanoparticles with a ruthenium-terpyridyl complex, and electropolymerization of their pyrrole-modified metal nanocomposites
Ito, Masayuki,Tsukatani, Takashi,Fujihara, Hisashi
, p. 960 - 964 (2005)
The reduction of tetrachloroaurate with sodium borohydride in the presence of 2,2′:6′,2″-terpyridyloctanethiol gave terpyridine- functionalized gold nanoparticles (Tpy-Au, core size 2.0 nm). Metal complexation of Tpy-Au with ruthenium-terpyridyl trichloride, Ru(tpy)Cl3, led to new gold nanoparticles bearing the ruthenium-terpyridine complex (Ru-Tpy-Au, core size 5.5 nm) which showed a characteristic MLCT (metal-to-ligand charge transfer) band in the visible region at 483 nm due to the terpyridine-ruthenium complex and a plasmon resonance at ～ 510 nm in the UV-vis spectrum. The redox behavior of Ru-Tpy-Au was studied by cyclic voltammetry. Surface modification of metal electrodes was performed by the electropolymerization of pyrrole-functionalized Ru-Tpy-Au nanoparticles (Pyr-Ru-Tpy-Au) which were obtained from the ligand-exchange reaction of Ru-Tpy-Au with w-(N-pyrrolyl)decanethiol. The Royal Society of Chemistry 2005.
