An efficient triazole-pyridine-bistetrazolate platform for highly luminescent lanthanide complexes

Area of Science:

• Coordination Chemistry
• Materials Science
• Photophysics

Background:

• Lanthanide complexes are crucial for luminescence applications.
• Developing novel ligands is key to enhancing luminescent properties.
• Triazole and pyridine moieties offer versatile coordination environments.

Purpose of the Study:

• Synthesize novel triazole-pyridine-bistetrazolate ligands.
• Characterize the resulting homoleptic lanthanide complexes.
• Evaluate the luminescent properties of these complexes in solid-state and polymer matrices.

Main Methods:

• Versatile synthetic procedure for ligand preparation.
• Formation of homoleptic tris-ligand nona-coordinated lanthanide complexes.
• Luminescence spectroscopy for quantum yield determination in solid-state and PVA matrix.

Main Results:

• Successful synthesis of two new triazole-pyridine-bistetrazolate ligands.
• Lanthanide complexes exhibited high luminescence.
• Eu(III) and Tb(III) complexes achieved luminescence quantum yields of 70(7)% and 98(9)%, respectively.

Conclusions:

• The synthesized ligands are effective building blocks for luminescent lanthanide complexes.
• These complexes demonstrate significant potential for solid-state lighting and optical materials.
• The versatile synthesis allows for tunable luminescent properties through further derivatization.