کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1441682 | 1509418 | 2012 | 8 صفحه PDF | دانلود رایگان |
Two lanthanide pyridine-2,4,6-tricarboxylate coordination polymers [Ln2(H2O)9(ptc)2]·3H2O (Ln = Dy(1), Yb(2); H3ptc = pyridine-2,4,6-tricarboxylic acid) have been synthesized and structurally characterized by single-crystal X-ray diffraction. The compound 1 and 2 is isostructural, and the feature of structure is a centrosymmetric tetra-nuclear unit, which is assembled into a 3D supra-molecular architecture via extensively hydrogen bonding interaction. The luminescence experiments show that compound 1 exhibit the typical luminescence of Dy3+ ion in the visible region. Besides luminescence, the magnetic properties of 1 and 2 were investigated and indicated the anti-ferromagnetic couplings between the Ln(III) ions.
The supramolecular architectures of two isostructural lanthanide pyridine-2,4,6-tricarboxylate, [Ln2(H2O)9(ptc)2]·3H2O (Ln = Dy(1), Yb(2); H3ptc = pyridine-2,4,6-tricarboxylic acid) exhibit a centrosymmetric tetra-nuclear unit, and the magnetic characterizations suggest anti-ferromagnetic couplings between the Ln(III) ions.Figure optionsDownload as PowerPoint slideHighlights
► Two lanthanide pyridine-2,4,6-tricarboxylate complexes have presented.
► The feature of 1 and 2 is a centrosymmetric tetra-nuclear unit.
► The magnetic properties of 1 and 2 indicate the anti-ferromagnetic coupling.
Journal: Synthetic Metals - Volume 162, Issues 13–14, August 2012, Pages 1327–1334