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首页> 外文期刊>Crystal growth & design >Multistep Structural Transformation of a Magnetic Metal-Organic Framework: Possible Transformation Mechanism, Form Evolution, and Magnetic Properties
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Multistep Structural Transformation of a Magnetic Metal-Organic Framework: Possible Transformation Mechanism, Form Evolution, and Magnetic Properties

机译:MultiStep磁金属 - 有机框架的结构转换:可能的转化机制,形成演化和磁性

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摘要

A new cluster-based heterometallic metal-organic framework, [Mn3Li2(TBIP)(4)(DMF)(4)] (1) (H2TBIP = 5-tert-butylisophthalic acid), was solvothermally synthesized. Triggered by methanol, the alpha-Po network of 1 underwent a sequence of irreversible structural transformation to form a CdSO4-type framework [Mn(TBIP)(H2O)(3)]center dot 4H(2)O(5), during which course three intermediate phases, 2-4 were observed. A single crystal X-ray diffraction analysis reveals that 4, formulated as [Mn-3(TBIP)(3)(MeOH)(4)], exhibits the same topology network of 1 but with a different node structure. Notably, the evolution of form from microcrystals 1 to diverse forms, including core- shell and Janus-type heterostructures, was achieved by controlling the time of methanol immersion. Moreover, the overall structural transformation from 1 to 5 was monitored by magnetic susceptibility, scanning electron microscopy, inductively Coupled Plasma analysis, and electron paramagnetic resonance, which provide useful information for understanding the mechanism of this transformation.
机译:一种新的基于簇的杂体金属 - 有机框架[MN3LI2(TBIP)(4)(4)(DMF)(4)](1)(H2TBIP = 5-叔丁基二甲醛酸)在溶剂上合成。由甲醇触发,α-PO网络1的α-PO网络经历了一系列不可逆的结构转化,形成CDSO4型框架[Mn(TBIP)(H2O)(3)]中心点4h(2)O(5),在此期间当然,观察到三个中间阶段,2-4。单晶X射线衍射分析表明,4,配制为[Mn-3(TBIP)(3)(3)(MeOH)(4)],表现出相同的拓扑网络,但具有不同的节点结构。值得注意的是,通过控制甲醇浸渍的时间来实现从微晶1到不同形式的形式的形式的进化,包括核壳和Janus型异质结构。此外,通过磁化率,扫描电子显微镜,电感耦合等离子体分析和电子顺磁共振来监测1至5的整体结构变换,并提供了理解该转化机制的有用信息。

著录项

  • 来源
    《Crystal growth & design》 |2020年第2期|共8页
  • 作者单位

    Minjiang Univ Fuzhou Fujian Peoples R China;

    Chinese Acad Sci Yantai Shandong Peoples R China;

    Chinese Acad Sci Fujian Inst Res Struct Matter Fuzhou Fujian Peoples R China;

    Chinese Acad Sci Fujian Inst Res Struct Matter Fuzhou Fujian Peoples R China;

    Minjiang Univ Fuzhou Fujian Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 晶体学;
  • 关键词

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