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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Syntheses, Structural Characterization, and Properties of Mixed-valent CoIICoIII and ZnII Coordination Polymers from 5-(4-Carboxybenzylamino)isophthalic Acid
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Syntheses, Structural Characterization, and Properties of Mixed-valent CoIICoIII and ZnII Coordination Polymers from 5-(4-Carboxybenzylamino)isophthalic Acid

机译：5-（4-羧基苄基氨基）间苯二甲酸的混合价CoIICoIII和ZnII配位聚合物的合成，结构表征和性质

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摘要

The reaction of cobalt(II) and zinc(II) salts with 5-(4-carboxybenzylamino)isophthalic acid (H_3L) in the presence of 1,2-bis(pyridin-4-yl)ethane (bpa) as auxiliary co-ligand under hydrothermal synthetic condition led to the formation of two complexes, {[(Co~(II))_(0.25)(Co~(III))_(0.5)(HL)(H_2O)_(0.5)(bpa)_(0.25)]·2.5H_2O}_n (1) and [Zn(HL)(bpa)_(0.5)]_n (2), which were characterized by single crystal and powder X-ray diffraction, IR spectroscopy as well as elemental and thermogravimetric analyses. Complex 1 displays uninodal 4-connected 2D sql network with (4~4.6~2) topology, complex 2 is binodal (3,6)-connected 2D (4.6~2)_2(4~2.6~(10).8~3) network. Interestingly, complex 1 shows structural features consistent with the Jahn-Teller distortions, whereas in 2 adjacent 2D networks are interpenetrated to show 2D +2D → 3D parallel interpenetration of slabs. Furthermore, it is noteworthy that the oxidation of Co~(II) to Co~(III) occurred in the preparation of 1 to give rise to a mixed-valent cobalt coordination polymer, which can be confirmed by magnetic measurement. Magnetic property of 1 and luminescence of 2 were investigated.
机译：钴（II）和锌（II）盐与5-（4-羧基苄基氨基）间苯二甲酸（H_3L）在1,2-双（吡啶-4-基）乙烷（bpa）作为辅助助剂存在下的反应水热合成条件下的配体导致形成两种络合物，{[（Co〜（II））_（0.25）（Co〜（III））_（0.5）（HL）（H_2O）_（0.5）（bpa） _（0.25）]·2.5H_2O} _n（1）和[Zn（HL）（bpa）_（0.5）] _ n（2），分别通过单晶和粉末X射线衍射，红外光谱以及元素分析和热重分析。复合物1显示具有（4〜4.6〜2）拓扑的单节点4连通2D sql网络，复合物2为二点（3,6）连接的2D（4.6〜2）_2（4〜2.6〜（10）.8〜3） ）网络。有趣的是，复合体1的结构特征与Jahn-Teller变形一致，而在2中，相邻的2D网络互穿以显示平板的2D + 2D→3D平行互穿。此外，值得注意的是，在制备1中，Co-（II）氧化为Co-（III），从而生成了混合价的钴配位聚合物，这可以通过磁测量来证实。研究了1的磁性和2的发光。

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