Polarized Emission Property of the Lanthanide-complex Molecular Film

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The aim of the present investigation is that the polarized emission of lanthanide complexes will be developed by using the thin film method, which used efficient intramolecular energy transfer in the molecules. During three years of this research project, a novel antenna molecule, which composed phenanthroline analogous with a long alkyl chain, was prepared, and had two role as a surfactant and ligand for the metal complexation. The LB film of a Eu complex with this ligand was tried to form on the quartz plate. This film showed ff-emission with polarization phenomena. We succeeded to find the key role of the conformation among the ligand polarization and association to the metal to obtain the polarized ff-emission. It is in progress to clarify quantitatively for their perfect manipulation.