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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >A zwitterionic ligand-based water-stable metal-organic framework showing photochromic and Cr(VI) removal properties
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A zwitterionic ligand-based water-stable metal-organic framework showing photochromic and Cr(VI) removal properties

机译：基于两性离子配体的水稳定金属 - 有机框架，显示光致变色和Cr（VI）去除性质

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摘要

As one of the highly crystalline porous materials, metal-organic frameworks (MOFs) have drawn immense attention due to their diverse structures and a wide variety of applications. In this study, [In-3(ipbp)(2)(mu(2)-OH)(mu(2)-O)(3)] (1) that has a three-dimensional framework, including two types of cages with cuboctahedra and trigonal antiprism configurations, has been successfully synthesized based on the zwitterionic ligand 1-(3,5-dicarboxyphenyl)-4,4 '-bipyridinium bromide (H-2(ipbp)Br). Strikingly, a relatively rare trapeziform metal layer consisting of In3+, mu(2)-OH, mu(2)-O, carboxyl, and nitrogen from the ligand appears in the structure of 1. Benefitting from the formation of the ipbp radicals under UV light irradiation, compound 1 exhibits photochromic property that can transform the color from yellow to green. Moreover, it possesses commendable Cr(vi) removal capacity with the maximum adsorption amount of 74.4 mg.g(-1) due to the surface electrostatic interaction between the crystal surface and Cr(vi) in the aqueous system. This work will promote the design of functional MOFs that show potential applications in UV light detection and removal of oxyanions.
机译：作为高度结晶多孔材料之一，金属有机框架（MOF）由于其不同的结构和各种应用而引起了巨大的关注。在本研究中，[3（IPBP）（2）（MU（2）-OH）（MU（2）-O）（3）]（1），具有三维框架，包括两种类型的笼子通过基于两性离子配体1-（3,5-二羧基）-4,4'-苯吡啶溴化物（H-2（IPBP）Br）成功地合成了CuboctaHedra和Trigonal Alipriss配置。尖锐的是，由in3 +，mu（2）-OH，mu（2）-o，羧基组成的相对罕见的梯形金属层，从配体中出现在结构的结构中。受益于UV下的IPBP基团的形成光照射，化合物1表现出光致变色性能，可以将颜色从黄色转变为绿色。此外，由于水性系统中的晶体表面和Cr（VI）之间的表面静电相互作用，它具有最高的Cr（VI）去除容量，其最大吸附量为74.4mg.g（-1）。这项工作将促进函数MOF的设计，其显示UV光检测和除去氧气的潜在应用。

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  • 作者

    Zhang Chenghui; Shi Huaizhong; Yan Yan; Sun Libo; Ye Yu; Lu Yizhong; Liang Zhiqiang; Li Jiyang;

  • 作者单位

    Jilin Univ State Key Lab Inorgan Synth &

    Preparat Chem Changchun 130012 Peoples R China;

    Jilin Univ State Key Lab Inorgan Synth &

    Preparat Chem Changchun 130012 Peoples R China;

    Jilin Univ State Key Lab Inorgan Synth &

    Preparat Chem Changchun 130012 Peoples R China;

    Nanyang Technol Univ Sch Chem &

    Biomed Engn 62 Nanyang Dr Singapore 637459 Singapore;

    Jilin Univ State Key Lab Inorgan Synth &

    Preparat Chem Changchun 130012 Peoples R China;

    Univ Jinan Sch Mat Sci &

    Engn Jinan 250022 Peoples R China;

    Jilin Univ State Key Lab Inorgan Synth &

    Preparat Chem Changchun 130012 Peoples R China;

    Jilin Univ State Key Lab Inorgan Synth &

    Preparat Chem Changchun 130012 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;无机化学;
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