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首页> 外文期刊>Crystal growth & design >Influence of the Metal Ion on the Topology and Interpenetration of Pyridylvinyl(benzoate) Based Metal-Organic Frameworks
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Influence of the Metal Ion on the Topology and Interpenetration of Pyridylvinyl(benzoate) Based Metal-Organic Frameworks

机译：金属离子对吡啶基（苯甲酸盐）金属 - 有机骨架拓扑和互相的影响

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摘要

A family of four M(II)-metal-organic frameworks of general formula {[M-x(pvb)(2x)]y(dmf)}(n) (M = Cu, 1; M = Co, 2; M = Ni, 3; M = Mn, 4), based on the bis{4-[2-(4-pyridyl)ethenyl]} benzoic acid (Hpvb) ligand, were obtained. 1 exhibits a 5-fold interpenetrated lvt framework, 2 and 3 a 7-fold interpenetrating dia framework, and 4 a 2-fold interpenetrated dmc framework. Magnetic properties of 1-4 have been investigated. 1 was analyzed by a Curie-Weiss model, while 2 and 3 where analyzed by a zero-field splitting model due to the very long metal-metal distances, which results in very weak antiferromagnetic interactions. The coupling pathway in 4 was done by carboxylate bridges instead of the pvb pathway, affording a short metal-metal separation that was analyzed by a isotropic Heisenberg spin Hamiltonian for a linear trinuclear Mn(II) cluster. The different metal coordination modes and geometries, along with template effects induced by the solvent, play an important role in the formation of distinctive structural topologies.
机译：一家四个米（II）一般式 - 有机框架的通式{[mx（pvb）（2x）] y（dmf）}（n）（m = cu，1; m = co，2; m = ni基于BIS {4- [2-（4-（4-（4-吡啶基）乙烯基]苯甲酸（HPVB）配体，得到3; m = Mn，4）。图1显示了5倍的互进的LVT框架，2和3 A 7倍间隔的DIA框架，4A 2倍互通型DMC框架。研究了1-4的磁性。由CUIE-WEISS模型分析1，而2和3由零场分裂模型因金属 - 金属距离而分析，这导致反铁磁相互作用非常弱。 4中的偶联途径由羧酸盐桥代替PVB途径完成，得到短金属 - 金属分离，其通过各向同性的Heisenberg Spin Hamiltonian分析用于线性三核Mn（II）簇。不同的金属配位模式和几何形状以及溶剂诱导的模板效应，在形成独特的结构拓扑中起着重要作用。

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  • 来源
    《Crystal growth & design》 |2019年第10期|共12页
  • 作者

    Dezotti Yuri; Ribeiro Marcos Antonio; Pirota Kleber R.; Barros Wdeson Pereira;

  • 作者单位

    Univ Estadual Campinas Inst Quim Dept Quim Inorgan BR-13083970 Campinas SP Brazil;

    Univ Fed Espirito Santo Dept Quim BR-29075910 Vitoria ES Brazil;

    Univ Estadual Campinas Inst Fis Gleb Wataghin Dept Fis Mat Condensada BR-13083970 Campinas SP Brazil;

    Univ Estadual Campinas Inst Quim Dept Quim Inorgan BR-13083970 Campinas SP Brazil;

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  • 正文语种 eng
  • 中图分类 晶体学;
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