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

被引:1
|
作者
Fang, Wei-Hui [1 ]
Jia, Xiang-Li [1 ]
Yang, Guo-Yu [1 ]
机构
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
关键词
Lanthanide cluster; Pyridine-2,6-dicarboxylate; Hydrothermal synthesis; Luminescence; HELICAL TUBES; COORDINATION POLYMERS; LAYERED NETWORKS; COMPLEXES; ISONICOTINATE; LINKAGES; SERIES; CUBANE; ACID; ND;
D O I
10.1007/s10876-014-0751-z
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Two novel cluster organic frameworks derived from pyridine-2,6-dicarboxylate (PDA) and oxalate (ox(2-)) have been hydrothermally made: [Eu-3(SO4)(PDA)(3)(ox)(0.5)(H2O)(5)]center dot 4H(2)O (1) and Er(PDA)(ox)(0.5)(H2O) (2). Compound 1 possesses one-dimensional chain structure constructed from the alternate linkage of tetranuclear [Eu-4(SO4)(2)](8+) (Eu-4) and dinuclear [Eu-2(ox)](4+) (Eu-2) clusters. Compound 2 is a two-dimensional layer based on dimeric [Er-2(COO)(2)](2+) (Er-2) 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.
引用
收藏
页码:1553 / 1565
页数:13
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