Light-triggered Supramolecular Isomerism in a Self-catenated Zn(II)-organic Framework: Dynamic Photo-switching CO2 Uptake and Detection of Nitroaromatics

被引：24

作者：

Song, Wei-Chao ^{[1
]}

Cui, Xun-Zhe ^{[1
]}

Liu, Zhong-Yi ^{[1
]}

Yang, En-Cui ^{[1
]}

Zhao, Xiao-Jun ^{[1
,2
]}

机构：

[1] Tianjin Normal Univ, Key Lab Inorgan Organ Hybrid Funct Mat Chem, Tianjin Key Lab Struct & Performance Funct Mol, Minist Educ, Tianjin 300387, Peoples R China

[2] Nankai Univ, Dept Chem, Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300071, Peoples R China

来源：

SCIENTIFIC REPORTS | 2016年 / 6卷

基金：

中国国家自然科学基金;

关键词：

METAL-ORGANIC FRAMEWORKS; COORDINATION POLYMERS; PHASE DETECTION; CAPTURE; ADSORPTION; RELEASE; PHOTODIMERIZATION; EXPLOSIVES; CRISSCROSS; STABILITY;

D O I：

10.1038/srep34870

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A self-catenated Zn(II)-organic framework formulated as [Zn-2(3,3'-bpeab)(oba)(2)]center dot DMF (1) exhibiting a six-connected 4(4).61(0.)8 topology has been successfully synthesized through the mixed-ligand of kinked 3,3'-bis[2-(4-pyridyl)ethenyl]azobenzene (3,3'-bpeab) and 4,4'-oxybis-benzoic acid (H(2)oba) under solvothermal condition. UV light triggers isomerization of complex 1 in a single-crystal-to-single-crystal (SCSC) manner, giving rise to a conformational supramolecular isomer 1_UV through the pedal motion of photoresponsive double bonds. Dynamic photo-switching in the obtained light-responsive supramolecular isomers leads to instantly reversible CO2 uptake. Furthermore, the ligand originated fluorescence emission of water-resistant complex 1 is selectively sensitive to 4-nitrotoluene (4-NT) owing to a higher quenching efficiency of the perilous explosive over other structurally similar nitroaromatics, prefiguring the potentials of 1 as a fluorescence sensor towards 4-NT in aquatic media.

引用

页数：8

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