A novel photofunctional hybrid material of pyrene functionalized metal-organic framework with conformation change for fluorescence sensing of Cu2+
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- 作者：Chang LiuAuthor Vitae ; Bing Yan ; byan@tongji.edu.cn" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae
- 关键词：Cu2+ sensing ; Luminescence ; Metal-organic framework ; Conformation change ; Covalently modification
- 刊名：Sensors & Actuators: B. Chemical
- 出版年：2016
- 出版时间：1 November 2016
- 年：2016
- 卷：235
- 期：Complete
- 页码：541-546
- 全文大小：1722 K
文摘
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A pyrene-functionalized MOF (MIL-53-L) (MIL = Matériaux de I’Institut Lavoisier) as an efficient fluorescent chemosensor for Cu2+ detection.
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Terephthalic acid moiety as framework linker of MOF, imine moiety for Cu2+ detection by binding sites, and pyrene moiety for signal conversion.
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A transformation of configuration with the dangled pyrene groups from monomer of free H2L to excimer in MIL-53-L under a confinement effect.
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Detecting Cu2+ from another change of dangled pyrene groups from stacked excimer state to quenched excimer state.