Lanthanide-Sensitized Lanthanide Luminescence:  Terbium-Sensitized Ytterbium Luminescence in a Trinuclear Complex

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...

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Bibliographic Details
Published in:Journal of the American Chemical Society 2003-09, Vol.125 (35), p.10526-10527
Main Authors: Faulkner, Stephen, Pope, Simon J. A
Format: Article
Language:English
Subjects:
Atomic and molecular physics
Chelating Agents - chemistry
Exact sciences and technology
Fluorescence and phosphorescence
radiationless transitions, quenching (intersystem crossing, internal conversion)
Luminescent Measurements
Molecular properties and interactions with photons
Organometallic Compounds - chemistry
Pentetic Acid - analogs & derivatives
Physics
Radiationless transitions, quenching
Spectroscopy, Near-Infrared
Terbium - chemistry
Ytterbium - chemistry
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Summary: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.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja035634v