Citation: ZOU Shu-Zhi, DU Shao-Wu. Syntheses, Structures and Luminescent Properties of Two Europium-based Metal-organic Frameworks[J]. Chinese Journal of Structural Chemistry, ;2015, 34(8): 1265-1272. doi: 10.14102/j.cnki.0254-5861.2011-0650 shu

Syntheses, Structures and Luminescent Properties of Two Europium-based Metal-organic Frameworks

ZOU Shu-Zhi ^a,b ,
DU Shao-Wu ^a,,

a.
a. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China;
b.
b. Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Corresponding author: DU Shao-Wu,
Received Date: 23 January 2015
Available Online: 1 April 2015
Fund Project: This work was supported by the National Basic Research Program of China (973 Program, 2012CB821702) (973 Program, 2012CB821702)

Two new europium-based metal-organic-frameworks (MOFs), namely [NMe₄][Eu(m-BDC)₂] (1) and [Eu₃(p-BDC)₄(ClO₄)(H₂O)₄] (2), have been synthesized and structurally characte-rized. Single-crystal X-ray diffraction studies reveal that 1 crystallizes in the monoclinic system, space group P2₁/c with a 2D layer structure, while 2 crystallizes in the orthorhombic system, space group Pccn with a 3D net structure. Both 1 and 2 have strong characteristic Eu(Ⅲ) emissions at visible red region and the quantum yields can reach up to 78.1 and 46.0%, respectively. The high luminescent efficiency may be attributed to the efficient energy transition from the ligands to the Eu(Ⅲ) center.
- synthesis,
- crystal structure,
- lanthanide-based MOFs,
- luminescence
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