Influence of solvent coordination on crystal structure and luminescent property in lanthanide MOFs

Qin Yu Zhu, Qian Sun, Min Chao Guo, Xu Sheng Gao, Wen Long Liu, Xiao Ming Ren

科研成果: 期刊稿件文章同行评审

4 引用 (Scopus)

摘要

Two isomorphous Ln-MOFs with pyridine-2, 4, 6-tricarboxylic acid (H3PTC), Eu-PTC-DMF and Tb-PTC-DMF, were prepared by solvothermal synthesis method and characterized by IR spectroscopy, and thermogravimetric analysis, and powder X-ray diffraction techniques. Single-crystal structural analyses indicate that the Ln1 and Ln2 coordination polyhedra are connected by sharing corners of polyhedra to construct 1D chain, which further form a 3D coordination framework through the connection of PTC3- ligands, and the solvent molecules of DMF and H2O, as the terminal ligands, are bound to polyhedra of Ln3+ ions. Investigation of the photophysical property at ambient conditions revealed that both Ln-MOFs emit characteristic luminescence of Ln3+ ions. Eu-PTC-DMF and Tb-PTC-DMF possess microsecond scale emission lifetime with absolute quantum yields as high as 33.1% and 50.8%, respectively.

源语言英语
文章编号116386
期刊Polyhedron
237
DOI
出版状态已出版 - 1 6月 2023

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