期刊
DALTON TRANSACTIONS
卷 42, 期 10, 页码 3587-3596出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2dt32390g
关键词
-
资金
- 973 Program [2012CB821702, 2011CB935902]
- NSFC [20971074, 91122004, 21271137]
- NSF of Tianjin [10JCZDJC21700]
Six novel three-dimensional (3D) lanthanide metal-organic frameworks (LnMOFs), {[Ln(2)(ispc)(3)(H2O)(3)]center dot mH(2)O}(n) (Ln = Pr (1, m = 5); Eu (2, m = 5); Gd (3, m = 4); Tb (4, m = 5); Dy (5, m = 5) and Ho (6, m = 4)), ispc = 3-(4-carboxyphenylsulfonyloxy)-4-methoxybenzoic anion) have been synthesized under hydrothermal conditions. Single crystal X-ray diffraction revealed they are isostructural and crystallize in the triclinic crystal system, space group P (1) over bar. The investigations on luminescent properties and lifetimes of 2 (Eu-III), 4 (Tb-III), and 5 (Dy-III) exhibit characteristic emissions of Eu-III, Tb-III and Dy-III ions and the corresponding luminescent lifetimes are 0.14 ms, 9.93 mu s and 1.25 ms, respectively. The different luminescent intensities and lifetimes among them were further discussed. Furthermore, magnetic studies of 1-6 reveal that 3-6 exhibit ferromagnetic coupling, and 5 (Dy-III) exhibits remarkably slow magnetic relaxation behavior with the energy barrier Delta E/k(B) = 49.2 K.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据