A series of 2D lanthanide (III) coordination polymers constructed from 2-(pyridin-3-yl)-1H-imidazole-4,5-dicarboxylate

A series of 2D lanthanide (III) coordination polymers constructed from 2-(pyridin-3-yl)-1H-imidazole-4,5-dicarboxylate
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由2-(吡啶-3-基)-1H-咪唑-4,5-二羧酸酯构建的一系列二维镧系(III)配位聚合物

DOI:
10.1016/j.jssc.2011.09.006
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发表时间:
2011-12
影响因子:
3.3
通讯作者:
Zhang, Wei-Guang
Zhang, Wei-Guang
中科院分区:
化学3区
文献类型:
--
作者:
Cai, Song Liang;Zheng, Sheng Run;Fan, Jun;Tan, Jing Bo;Xiao, Tian Tian;Zhang, Wei-Guang

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反应2-吡啶-3-基-1H-4,5-咪唑二甲酸(H3 PyIDC)与一系列Ln(III)离子配位,得到10个配位聚合物,分别为{[Ln(H2 PyIDC)(HPyIDC)(H2O)2]·H2O}n[Ln=Nd(1),Sm(2),Eu(3),Gd(4)],{[Ln(HPyIDC)(H2O)3]·(H2 PyIDC)·H2O}n[Ln=Gd(5),Tb(6),Dy(7),Ho(8)和Er(9)]和{[Y2(HPyIDC)2(H2O)5]·(bpy)·(NO3)2·3 H2O}n(10)(bpy= 4,4 ′-联吡啶)。它们表现出三种类型的网络:配合物1-4是含有中性2D金属有机层的类质同象配位网络,而配合物5-9是由阳离子金属有机层和阴离子有机层组成的类质同象配位网络,配合物10是由4-连接的HPyIDC 2 −阴离子和4-连接的Y(III)离子组成的2D网络。此外,所选配合物的热重分析和固态发光性能进行了研究。它们在室温下在可见光区表现出强烈的特征发射。
Reactions of 2-(pyridine-3-yl)-1H-4,5-imidazoledicarboxylic acid (H3PyIDC) with a series of Ln(III) ions affords ten coordination polymers, namely, {[Ln(H2PyIDC)(HPyIDC)(H2O)2]·H2O}n[Ln=Nd (1), Sm (2), Eu (3) and Gd (4)], {[Ln(HPyIDC)(H2O)3]·(H2PyIDC)·H2O}n[Ln=Gd (5), Tb (6), Dy (7), Ho (8) and Er (9)], and {[Y2(HPyIDC)2(H2O)5]·(bpy)·(NO3)2·3H2O}n(10) (bpy=4,4′-bipyridine). They exhibit three types of networks: complexes 1–4 are isomorphous coordination networks containing neutral 2D metal-organic layers, while complexes 5–9 are isomorphous, which consist of cationic metal-organic layers and anionic organic layers, and complex 10 is a 2D network built up from 4-connected HPyIDC2−anion and 4-connected Y(III) ions. In addition, thermogravimetric analyses and solid-state luminescent properties of the selected complexes are investigated. They exhibit intense, characteristic emissions in the visible region at room temperature.
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