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Updated: Jul 6, 2026
07:24
Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
Published on: April 14, 2020
Tuning the coordination sphere around highly luminescent lanthanide complexes.
Loïc Charbonnière1, Samir Mameri, Pascal Kadjane
1Laboratoire de Chimie Moléculaire, associé au CNRS, ECPM-ULP, 25 rue Becquerel, Strasbourg Cedex 02, France. l.charbonn@chimie.u-strasbg.fr
Inorganic Chemistry
|April 9, 2008
Summary
New ligands create water-soluble luminescent lanthanide complexes. These complexes show interactions with phosphorylated anions like ATP, influencing their luminescence properties in aqueous solutions.
Area of Science:
- Coordination Chemistry
- Supramolecular Chemistry
- Photophysics
Background:
- Lanthanide complexes are crucial for luminescence applications.
- Designing water-soluble ligands is essential for biological and environmental studies.
- Understanding anion interactions is key to controlling complex behavior.
Purpose of the Study:
- To synthesize and characterize novel ligands for water-soluble luminescent lanthanide complexes.
- To investigate the photophysical properties of Europium (Eu) and Terbium (Tb) complexes in aqueous solution.
- To explore the influence of phosphorylated anions on the luminescence of these complexes.
Main Methods:
- Synthesis of three terpyridine-based ligands (L1, L2, L3).
- Spectroscopic studies: absorption, steady-state, and time-resolved luminescence.
- Nuclear Magnetic Resonance (NMR) spectroscopy and Density Functional Theory (DFT) calculations.
Main Results:
- Successfully formed water-soluble luminescent Eu and Tb complexes.
- Determined two water molecules in the first coordination sphere via luminescence lifetimes.
- Observed significant interaction between ATP and the [Eu(L2)(H2O)2]+ complex, altering luminescence.
Conclusions:
- The designed ligands effectively form water-soluble luminescent lanthanide complexes.
- Phosphorylated anions, particularly ATP, can interact with and modify the luminescence of these complexes.
- DFT calculations provide insights into the coordination mechanisms and structural changes.
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