Unusual Magnetic Behavior of a 2D Citrate‐Bridged Dysprosium(III) Coordination Polymer
作者:Feng‐Yan Li、Lin Xu、Guang‐Gang Gao、Li‐Hua Fan、Bo Bi
DOI:10.1002/ejic.200601113
日期:2007.7
A new lanthanide citratecoordinationpolymer [Dy(citrate)(H2O)]n (1) was hydrothermally synthesized and structurally characterized by elemental analyses, single-crystal X-ray diffraction, IR spectroscopy, thermogravimetric analysis, photoluminescence spectrum, and magnetic measurements. The structure of 1 exhibits a 2D layer structure, in which the Dy2O2 dimer serves as the building block. The photoluminescence
Syntheses, structures and magnetic properties of a series of 2D and 3D lanthanide complexes constructed by citric ligand
作者:Rui-Sha Zhou、Jiang-Feng Song、Qing-Feng Yang、Xiao-Yu Xu、Ji-Qing Xu、Tie-Gang Wang
DOI:10.1016/j.molstruc.2007.07.027
日期:2008.4
A series of lanthanide(III) complexes with citric ligand, [Ln(Hcit)(H2O)](n) (Ln = Ce (1), Pr (2), Sm (3), Dy (4) and Er (5)), have been synthesized and characterized by elemental analysis, IR, TGA and single-crystal X-ray diffraction. X-ray structural analysis reveals that complexes I and 2 are isomorphous and feature 3D networks showing five-connected distorted BN topology, while the isostructural 3-5 display 2D layer structures with two kinds of 13-membered rings. Variable-temperature magnetic susceptibility measurements for complexes I and 5 indicate there exist antiferromagnetic interactions between magnetic centers. (C) 2007 Elsevier B.V. All rights reserved.