Guest-induced reversible structural transitions and concomitant on/off luminescence switching of an Eu(III) metal-organic framework and its application in detecting picric acid

被引：55

作者：

Li, Ao ^{[1
,2
]}

Li, Liang ^{[1
,2
]}

Lin, Zhi ^{[3
]}

Song, Lin ^{[1
,2
]}

Wang, Zi-Hao ^{[1
,2
]}

Chen, Qiang ^{[1
,2
]}

Yang, Tao ^{[1
,2
]}

Zhou, Xin-Hui ^{[1
,2
]}

Xiao, Hong-Ping ^{[4
]}

Yin, Xiu-Ju ^{[5
]}

机构：

[1] Nanjing Univ Posts & Telecommun, Natl Jiangsu Syngerst Innovat Ctr Adv Mat SICAM, Key Lab Organ Elect & Informat Displays, Nanjing 210023, Jiangsu, Peoples R China

[2] Nanjing Univ Posts & Telecommun, Natl Jiangsu Syngerst Innovat Ctr Adv Mat SICAM, Inst Adv Mat, Nanjing 210023, Jiangsu, Peoples R China

[3] Univ Aveiro, Dept Chem, CICECO, P-3810193 Aveiro, Portugal

[4] Wenzhou Univ, Coll Chem & Mat Engn, Wenzhou 325035, Peoples R China

[5] Hechi Univ, Sch Chem & Biol Engn, Yizhou 546300, Peoples R China

来源：

NEW JOURNAL OF CHEMISTRY | 2015年 / 39卷 / 03期

基金：

中国国家自然科学基金;

关键词：

SINGLE-CRYSTAL TRANSFORMATION; TUNABLE LUMINESCENCE; HYDROGEN STORAGE; SENSOR; EXCHANGE;

D O I：

10.1039/c4nj01946f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a flexible metal-organic framework (MOF), (Me2NH2)(3)[ Eu-3(MHFDA)(4)(NO3)(4)(DMF)(2)]center dot 4H(2)O center dot 2MeCN (1) (H(2)MHFDA = 9-methyl-9-hydroxy-fluorene-2,7-dicarboxylic acid), which was synthesized by a hydrothermal method and structurally characterized. This MOF has a three-dimensional framework structure with one-dimensional rhombic channels and the framework can be reversibly transformed between two phases upon release/uptake of the guest molecules. The vacuum drying process is accompanied by the loss of luminescence of the MOF, while the luminescence is recovered upon resoaking in DMF. The potential of the material for PA sensing was studied in DMF through the luminescence quenching experiments, which elucidate that this material is a potential turn-off luminescent sensory material for the selective detection of PA.

引用

页码：2289 / 2295

页数：7

共 37 条

[1] A colloidal water-stable MOF as a broad-range fluorescent pH sensor via post-synthetic modification [J].