Lanthanide Cluster Organic Frameworks Derived from Pyridine-2,6-dicarboxylate and Oxalate: Syntheses, Structures and Luminescence

被引：0
|
作者：
Wei-Hui Fang
Xiang-Li Jia
Guo-Yu Yang
机构：
[1] Chinese Academy of Sciences,State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter
来源：
Journal of Cluster Science | 2014年 / 25卷
关键词：
Lanthanide cluster; Pyridine-2,6-dicarboxylate; Hydrothermal synthesis; Luminescence;
D O I：
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中图分类号：
学科分类号：
摘要：
Two novel cluster organic frameworks derived from pyridine-2,6-dicarboxylate (PDA) and oxalate (ox2−) have been hydrothermally made: [Eu3(SO4)(PDA)3(ox)0.5(H2O)5]·4H2O (1) and Er(PDA)(ox)0.5(H2O) (2). Compound 1 possesses one-dimensional chain structure constructed from the alternate linkage of tetranuclear [Eu4(SO4)2]8+ (Eu4) and dinuclear [Eu2(ox)]4+ (Eu2) clusters. Compound 2 is a two-dimensional layer based on dimeric [Er2(COO)2]2+ (Er2) cluster units. Interestingly, such layer can be intuitively viewed as the linkages of helical chains and oxalate. In these two compounds, all anions are bivalent, and the ratio of trivalent lanthanide ions to these dianions is 2:3. Furthermore, compound 1 exhibits strong red luminescence upon 276 nm excitation.
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页码：1553 / 1565
页数：12
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