catena-Poly[[di-μ2-aqua-hexaaquabis(μ3-4-oxidopyridine-2,6-dicarboxylato)trimanganese(II)] trihydrate]: a new one-dimensional coordination polymer based on a trinuclear Mn(II) complex of chelidamic acid.

IF 0.8 4区化学 Acta crystallographica. Section C, Crystal structure communications Pub Date : 2013-10-01 Epub Date: 2013-09-28 DOI:10.1107/S0108270113025006

Masoud Mirzaei, Hossein Eshtiagh-Hosseini, Zahra Karrabi, Behrouz Notash

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引用次数: 8

Abstract

4-Hydroxypyridine-2,6-dicarboxylic acid (chelidamic acid, hypydc[H]H2) reacts with MnCl2·2H2O in the presence of piperazine in water to afford the title complex, {[Mn3(C7H2NO5)2(H2O)8]·3H2O}n or {[Mn3(hypydc)2(H2O)8]·3H2O}n. This compound is a one-dimensional coordination polymer, with the twofold symmetric repeat unit containing three metal centres. Two different coordination geometries are observed for the two independent Mn(II) metal centres, viz. a distorted pentagonal bipyramid and a distorted octahedron. The 4-oxidopyridine-2,6-dicarboxylate anions and two of the water molecules act as bridging ligands. The zigzag-like geometry of the coordination polymer is stabilized by hydrogen bonds. O-H···O and C-H···O hydrogen bonds and water clusters consolidate the three-dimensional network structure.

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链-聚[[二-μ2-水-六水合(μ3-4-氧化吡啶-2,6-二羧基)三锰(II)]三水合]:一种基于三核螯合酸锰(II)配合物的新型一维配位聚合物。

4-羟基吡啶-2,6-二羧酸(螯合酸，hypydc[H]H2)在水中与哌嗪存在下与MnCl2·2H2O反应生成标题配合物{[Mn3(C7H2NO5)2(H2O)8]·3H2O}n或{[Mn3(hypydc)2(H2O)8]·3H2O}n。该化合物是一种一维配位聚合物，其双重对称重复单元含有三个金属中心。观察到两个独立的Mn(II)金属中心的两种不同的配位几何形状，即扭曲的五边形双金字塔和扭曲的八面体。4-氧化吡啶-2,6-二羧酸盐阴离子和两个水分子作为桥接配体。配位聚合物的锯齿形几何结构由氢键稳定。O- h··O和C-H··O氢键和水团簇巩固了三维网络结构。

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Acta crystallographica. Section C, Crystal structure communications 化学-晶体学

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1 months

期刊介绍： Acta Crystallographica Section C: Structural Chemistry is continuing its transition to a journal that publishes exciting science with structural content, in particular, important results relating to the chemical sciences. Section C is the journal of choice for the rapid publication of articles that highlight interesting research facilitated by the determination, calculation or analysis of structures of any type, other than macromolecular structures. Articles that emphasize the science and the outcomes that were enabled by the study are particularly welcomed. Authors are encouraged to include mainstream science in their papers, thereby producing manuscripts that are substantial scientific well-rounded contributions that appeal to a broad community of readers and increase the profile of the authors.

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