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Updated: Aug 28, 2025
Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
Published on: April 14, 2020
Aggregation-Induced Emission and Single-Molecule Magnet Behavior of TPE-Based Ln(III) Complexes
Jinjiang Wu1,2, Chen Zhao1,2, Zhenhua Zhu1,3
1State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022, Changchun, P. R. China.
Abstract:
Multifunctional lanthanide complexes have been studied extensively owing to their promising applications in information storage, luminescence sensors and magneto-optical devices, etc. Here, we report the facile synthesis of two discrete highly thermally stable lanthanide compounds, Ln(hfac)3 (TPE-tz) (Ln=Eu, Dy), by the reaction of the AIE-active organic ligand with Ln(III) β-diketonate precursor. Due to different energy gaps between the triplet state of the ligand and the accepted level of Ln(III) ions, Eu(hfac)3 (TPE-tz) exhibited remarkably enhanced luminescence intensity upon aggregation, i. e., a typical AIE behavior, while Dy(hfac)3 (TPE-tz) displayed weak characteristic emission bands of Dy(III) ions. In addition, Dy(hfac)3 (TPE-tz) showed field-induced SMM behavior. This work shows that careful choice of auxiliary ligands paves the way for the construction of multifunctional lanthanide smart materials.
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