高等学校化学学报 ›› 2020, Vol. 41 ›› Issue (3): 417-424.doi: 10.7503/cjcu20190653

• 庆祝《高等学校化学学报》复刊40周年专栏 • 上一篇    下一篇

基于含蒽荧光配体的层柱型金属有机框架的合成及压致变色研究

漆义,李巧伟   

  1. 复旦大学化学系, 上海 200433
  • 收稿日期:2019-12-11 出版日期:2020-03-10 发布日期:2019-12-31
  • 通讯作者: 李巧伟
  • 作者简介:李巧伟, 男, 博士, 教授, 主要从事金属有机框架材料的合成及应用研究. E-mail: qwli@fudan.edu.cn
  • 基金资助:
    国家自然科学基金资助(Nos.21571037);国家自然科学基金资助(Nos.21733003);国家自然科学基金资助(Nos.21961132003)

Synthesis of Pillared-layer Metal-organic Frameworks from Anthracene Luminescent Linkers and Their Piezochromic Properties

QI Yi,LI Qiaowei   

  1. Department of Chemistry, Fudan University, Shanghai 200433, China
  • Received:2019-12-11 Online:2020-03-10 Published:2019-12-31
  • Contact: Qiaowei LI
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.21571037);† Supported by the National Natural Science Foundation of China(Nos.21733003);† Supported by the National Natural Science Foundation of China(Nos.21961132003)

摘要:

利用含蒽荧光配体9,10-双[(E)-2-(吡啶-4-基)乙烯基]蒽(BP4VA)分别与2种不同长度的二羧酸配体反应, 合成了层柱型的金属有机框架(MOFs)材料FDM-26和具有dia拓扑的三维材料FDM-27, 并解析了其单晶结构. 此外, 对含有配位键断裂缺陷的基于BP4VA配体的层柱型MOFs材料FDM-22晶体施加外界压力, 研究了压力刺激对FDM-22结构和荧光性质的影响. 结果表明, 在压力作用下, FDM-22能够保持结构稳定, 但其荧光发射波长出现红移. 经分析发现, 此压致变色性能是由于结构内压力诱导生成的配位缺陷数目增加所致.

关键词: 金属有机框架材料, 层柱型, 荧光, 压致变色

Abstract:

Employing anthracene luminescent linker 9,10-bis[(E)-2-(pyridin-4-yl)vinyl]anthracene(BP4VA) and two kind of carboxylic acid linkers with different lengths, two metal-organic framework(MOF) structures, FDM-26 with pillared-layer network and FDM-27 with dia topology, were synthesized. Moreover, the piezochromic property of BP4VA-based pillared-layer structure FDM-22 was investigated. Applying external pressure to the single crystals of FDM-22, which feature intrinsic coordination defects due to the metal-linker coordination bond breakage during activation, the framework integrity remains. However, their luminescence spectra show red shift up to 60 nm. It is concluded that the piezochromic response is due to the accumulation of more coordination defects after the pressure is applied.

Key words: Metal-organic frameworks(MOFs), Pillared-layer, Luminescence, Piezochromic property

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