title: Lanthanide-sensitized lanthanide luminescence: terbium-sensitized ytterbium luminescence in a trinuclear complex.
abstract: A heterotrinuclear lanthanide complex has been prepared which contains two terbium ions in DO3A-derived binding sites and a single ytterbium ion in a DTPA-like site. The luminescence properties of the system have been investigated, showing that the terbium remains in a seven-coordinate binding site throughout the synthesis, while the ytterbium occupies the eight-coordinate site. Pumping the 488 nm absorption band of the terbium ion results in energy transfer to ytterbium with emission at 980 nm.
authors.affiliation: Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK.
authors.forename: Stephen
authors.initials: S
authors.lastname: Faulkner
authors.forename: Simon J A
authors.initials: SJ
authors.lastname: Pope
mesh_terms: D002614:Chelating Agents / Q000737:chemistry; D008163:Luminescent Measurements; D009942:Organometallic Compounds / Q000737:chemistry*; D004369:Pentetic Acid / Q000031:analogs & derivatives*; D019265:Spectroscopy, Near-Infrared; D013725:Terbium / Q000737:chemistry*; D015018:Ytterbium / Q000737:chemistry*
chemical_list: D002614:Chelating Agents; D009942:Organometallic Compounds; D013725:Terbium; D004369:Pentetic Acid; D015018:Ytterbium