Lanthanide Complexes for Luminescence, Sensing, and Circularly Polarized Light
This community designs and synthesizes molecular complexes of rare-earth metals, primarily europium and terbium, to create materials that emit specific colors of light, detect chemical species, or produce circularly polarized luminescence for advanced optical applications.
The work centers on the synthesis and structural characterization of coordination compounds, often utilizing Schiff bases, diketonates, and other ligands to stabilize trivalent lanthanide ions. A dominant strand of research focuses on circularly polarized luminescence (CPL), developing chiral complexes and coordination polymers that emit light with a specific handedness. These materials are investigated for their energy transfer mechanisms, photoluminescence properties, and potential use as smart sensors, security inks, and bioimaging probes. The literature is heavily populated with studies on crystal structures, synthesis protocols, and the optical spectra of these highly luminescent systems, with a particular emphasis on europium(III) and terbium(III) derivatives.
The community constitutes a significant portion of research tracked for specific rare-earth elements, representing 20.6% of all europium research and 17.7% of all terbium research. It also includes a smaller fraction of neodymium research (1.4%) and minor contributions from silicon, chlorine, and common elements like hydrogen, nitrogen, and oxygen, which appear as part of the ligand structures.
The community comprises 18,826 papers, with the highest publication volume in Inorganic Chemistry, Inorganica Chimica Acta, and the Journal of Luminescence.
Recent work continues to explore chiral covalent–organic frameworks for circularly polarized luminescence and the development of multifunctional rare-earth chelators for diagnostic imaging and radiotherapy. New studies also examine the optical spectra of trivalent lanthanide ions in aqueous environments and the design of near-infrared emitting metallacrowns with tunable sensitizer–emitter distances.