Cucurbit[6]uril-based multifunctional supramolecular assemblies: synthesis, removal of Ba(ii) and fluorescence sensing of Fe(iii)

被引：46

作者：

Zhang, Xiu-Du ^{[1
]}

Zhao, Yue ^{[1
]}

Chen, Kai ^{[1
,2
]}

Wang, Peng ^{[1
]}

Kang, Yan-Shang ^{[1
]}

Wu, Hua ^{[1
]}

Sun, Wei-Yin ^{[1
]}

机构：

[1] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing Natl Lab Microstruct,Sch Chem & Chem Engn, Coordinat Chem Inst,State Key Lab Coordinat Chem, Nanjing 210023, Jiangsu, Peoples R China

[2] Nanjing Univ Informat Sci & Technol, Sch Environm Sci & Engn, Nanjing 210044, Jiangsu, Peoples R China

来源：

DALTON TRANSACTIONS | 2018年 / 47卷 / 11期

基金：

中国国家自然科学基金;

关键词：

METAL-ORGANIC FRAMEWORK; COORDINATION POLYMERS; CUCURBITURIL; CHEMISTRY; ARCHITECTURES; OPPORTUNITIES; RECOGNITION; LANTHANIDES; HOMOLOGS; ACID;

D O I：

10.1039/c8dt00182k

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A novel cucurbit[6]uril-based (Q[6]) supramolecular assembly {(NH4)(2)Q[6](HDTNB)(2)2H(2)O} (1) with a three-dimensional (3D) framework structure was successfully constructed via outer-surface interactions between Q[6] and a flexible aromatic compound, 5,5-dithiobis-(2-nitrobenzoic acid) (H2DTNB), as a structure-directing agent. It is interesting to find that assembly 1 can selectively capture Ba(ii) cations among the common alkaline-earth metal ions of Mg(ii), Ca(ii), Sr(ii) and Ba(ii), resulting in the formation of an isomorphic 3D assembly {Ba(H2O)(2)Q[6]}(HDTNB)(2) (2). Furthermore, both assemblies 1 and 2 exhibit the selective sensing of Fe(iii) ions through fluorescence quenching, which has rarely been reported for Q[n]-based supramolecular assemblies.

引用

页码：3958 / 3964

页数：7

共 38 条

[1]

[Anonymous], 2001, SAINT PROGR DAT EXTR

[2] Cucurbiturils: from synthesis to high-affinity binding and catalysis [J].