Solvent-controlled assembly of two Zn(II) coordination polymers constructed from 1,3,5-tris(1-imidazolyl)benzene and 2,5-dichloroterephthalic acid with fluorescent recognition of carcinogenic dye in chloroform

Two Zn(II) coordination polymers, [Zn 2 (tib) 2 (BDC-Cl 2 )(HBDC-Cl 2 ) 2 ]·2H 2 O (1) and [Zn(tib)(BDC-Cl 2 )]·H 2 O (2), were synthesized by reaction of 1,3,5-tris(1-imidazolyl)benzene (tib) and 2,5-dichloroterephthalic acid (H 2 BDC-Cl 2 ) with Zn 2+ under solvothermal conditions. The results of...

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Bibliographic Details
Published inJournal of coordination chemistry Vol. 73; no. 2; pp. 282 - 296
Main Authors Hua, Ji-Ai, Zhou, Ying-Jie, Bian, Yu-Jian, Tian, Yong, Zhao, Qiang, Ma, Xiang
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 17.01.2020
Taylor & Francis Ltd
Subjects
Benzene
carcinogen identification
Carcinogens
Chemical synthesis
Chloroform
Coordination polymers
Crystal structure
crystal structure analysis
Dyes
Fluorescence
fluorescent recognition
Hydrocarbons
Hydrogen bonding
Infrared analysis
Infrared spectroscopy
mixed-ligand strategy
Polymers
Single crystals
Solvents
Spectral emittance
Spectrum analysis
Supramolecular frameworks
Thermogravimetric analysis
Topology
X ray powder diffraction
Zinc(II)-coordination polymers
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Summary:Two Zn(II) coordination polymers, [Zn 2 (tib) 2 (BDC-Cl 2 )(HBDC-Cl 2 ) 2 ]·2H 2 O (1) and [Zn(tib)(BDC-Cl 2 )]·H 2 O (2), were synthesized by reaction of 1,3,5-tris(1-imidazolyl)benzene (tib) and 2,5-dichloroterephthalic acid (H 2 BDC-Cl 2 ) with Zn 2+ under solvothermal conditions. The results of X-ray single-crystal analysis show that 1 possesses a 1-D chain structure, while 2 exhibits a 2-D layer structure with {4 4 ·6 2 } topology. Both display a 3-D supramolecular framework through hydrogen bonding interactions. Experimental results indicated that the ratio of solvent may regulate the structural formation of the polymers. 1 and 2 were further characterized by powder X-ray diffraction (PXRD), IR spectroscopy, thermogravimetric analysis (TGA), and elemental analysis. Notably, 1 and 2 possess the ability to identify chloroform by emitting specific fluorescence spectra. Both can detect carcinogens in dyes by the modified fluorescent signal of the compound in chloroform.
ISSN:0095-8972
1029-0389
DOI:10.1080/00958972.2020.1729359