1533454-52-2Relevant academic research and scientific papers
Structures, luminescent and magnetic properties of a series of (3,6)-connected lanthanide-organic frameworks
Hou, Yin-Ling,Cheng, Rui-Rui,Xiong, Gang,Cui, Jian-Zhong,Zhao, Bin
, p. 1814 - 1820 (2014)
Through hydrothermal reactions with corresponding lanthanide nitrates and 4-(4-carboxyphenylsulfonyloxy)-3-metnoxybenzoic acid (H2vspc), seven novel three-dimensional (3D) lanthanide-organic frameworks ([Ln(vspc)(Hvspc) (H2O)]n [Ln = Pr (1), Eu (2), Gd (3), Tb (4), Dy (5), Ho (6) and Er (7)]) have been synthesized and structurally characterized. All of them are isostructural and crystallize in the monoclinic crystal system, P2 1/c space group. Their structures feature a (3,6)-connected topological network, in which Ln3+ were connected by carboxylate groups to give a 1D lanthanide chain, and the adjacent chains are further spanned by vspc2- and Hvspc- anions to form a 3D framework. The luminescent properties and lifetimes of 2 (EuIII), 4 (TbIII), and 5 (DyIII) have been studied, and the corresponding luminescent lifetimes are 0.53, 0.99 and 0.014 ms, respectively. The magnetic investigations reveal that compound 3 displays weak antiferromagnet interaction, 4 and 5 exhibit ferromagnetic coupling, and compound 5 exhibits slow magnetic relaxation behavior. The Royal Society of Chemistry.
