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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Syntheses, Crystal Structures, and Properties of Metal(II) Coordination Polymers based on Flexible Ligand 1,3‐Bis(4‐phenoxy)benzenedicarboxylic Acid and Bis(benzimidazole)
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Syntheses, Crystal Structures, and Properties of Metal(II) Coordination Polymers based on Flexible Ligand 1,3‐Bis(4‐phenoxy)benzenedicarboxylic Acid and Bis(benzimidazole)

机译:基于柔性配体1,3-双(4-苯氧基)苯并二羧酸和双(苯并咪唑)的金属(II)配位聚合物的合成,晶体结构和性质。

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摘要

> Three new coordination polymers, [Zn(PBDC)(bbbm) 0.5 ] n ( 1 ), [Co(PBDC)(bbbm)] n ( 2 ), and [Cd(PBDC)(bbbm)] n ( 3 ) were prepared via hydrothermal reactions of different metal(II) nitrates with flexible 1,3‐bis(4‐phenoxy)benzenedicarboxylic acid (H 2 L) and 1,1‐(1,4‐butanediyl)bis(benzimidazole) ligand. All these complexes were fully characterized by elemental analysis, FT‐IR, thermogravimetric analysis (TGA), powder X‐ray diffraction, and single‐crystal X‐ray diffraction. Structure analyses revealed that complex 1 has a 2D→2D twofold interpenetrating framework simplified by a 4‐connected sql net with point symbol (4 4 .6 2 ), whereas complexes 2 and 3 are isostructural and exhibit a 2D→2D twofold interpenetrating framework rationalized as a three‐connected hcb net with point symbol (6 3 ). Complexes 1 – 3 further expand to 3D supramolecular structures through non‐covalent C–H ··· O interactions. Additionally, the luminescent and magnetic properties of some of these complexes were studied. Complex 3 presents ideal photoluminescent behavior, whereas complex 2 shows antiferromagnetic coupling between the central Co II ions, suggesting its latent application in magnetic material.
机译:

三个新的协调聚合物,[Zn(PBDC)(BBBM) 0.5 ] n (< b> 1 ),[CO(PBDC)(BBBM)] n ( 2 )和[CD(PBDC) (BBBM)]通过不同金属(II)硝酸盐的水热反应,柔性1,3-双(4 - 苯氧基)苯二羧酸(H 2℃> L)和1,1-(1,4-丁二醇)双(苯并咪唑)配体。所有这些配合物通过元素分析,FT-IR,热重分析(TGA),粉末X射线衍射和单晶X射线衍射完全表征。结构分析显示,复杂的 1 具有2D→2d双重互穿框架,其通过点符号(4 4 .6 2 ),而复合物 2 和 3 是表现出的,并且表现为具有点符号的三连接的HCB网合理化的2D→2D双重互穿框架(6 3 )。复合物 1 - 3通过非共价C-H ···相互作用进一步扩展到3D超分子结构。另外,研究了一些这些配合物的发光和磁性。复合物 3 呈现理想的光致发光行为,而复合物 2 在中央CO II 离子之间显示反铁磁耦合,表明其在磁性材料中的潜在应用。

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