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Synthesis, structure and property of lanthanide-organic frameworks with pyridyl- and carboxylate-containing ligand |
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| Authors: | Man-Sheng Chen Jian Fan Gao-Chao Lv |
| Institution: | a Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructure, Nanjing University, Nanjing 210093, China b Department of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China c Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan |
| Abstract: | Three new lanthanide-organic frameworks {La(IP-py)(HIP-py)(H2O)2]·H2O}n (1), {Sm2(IP-py)2(IP-pyH)2(H2O)2]·12H2O}n (2) and {Tb3(IP-py)4(IP-pyH)(H2O)5]·9H2O}n (3) have been prepared by reactions of the corresponding lanthanide salt with 5-(isonicotinamido)isophthalic acid (H2IP-py). The complexes have been fully characterized by means of IR, elemental analyses and single-crystal X-ray diffraction. In compounds 1-3, the lanthanide centers are eight- and nine-coordinated with different coordination geometries and the carboxylate groups of the ligand show different coordination modes leading to the formation of different 2D network structures which are well-defined by the bulky and inert functional groups. Interestingly an unprecedented 2D network of water molecules was observed in complex 2. The luminescent properties of complexes 2 and 3 were investigated. |
| Keywords: | Lanthanide complex Hydrothermal reaction Luminescent property |
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