Inorganic Chemistry Communication
Inorganic Chemistry Communication
4 years ago

A series of supramolecular complexes constructed from discrete lanthanide dinuclear butterfly-shaped clusters: Syntheses, structures and properties

A series of supramolecular complexes constructed from discrete lanthanide dinuclear butterfly-shaped clusters: Syntheses, structures and properties
Butterfly shaped dinuclear clusters 1–3, with phathaly–based dicarboxylatic group and CH2 spacer, are synthesized by the reaction of Ln(NO3)3 (Ln=Eu3+, Nd3+, Pr3+) with ligand (2-({2-[2-carbosybenzoy])oxy]-ethoxy}carbonyal)benzoic acid) (H2L) in CH3CH2OH, CH3OH, (C2H5)3N and C2H3N. Their formula is identified as [Ln2(μ2-η3-L)2·(CH3OH)4·(η2-NO3)2]·2CH3OH (Ln=Eu(1); Nd(2); Pr(3). The structures of the complexes are characterized by IR spectra, thermal gravimetry (TG), single crystal X-ray diffraction analysis as well as powder X-ray diffraction (PXRD). Structural analyses reveal that they are isomorphous. The thermal behaviors of complexes 1–3 were investigated and the complexes were found to be stable up to about 300°C. Complex 1 exhibited luminescence emission bands at 590, 613, 685 and 697nm at room temperature when excited at 395nm.

Publisher URL: www.sciencedirect.com/science

DOI: S1387700317306561

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