Facile fabrication and luminescence properties of a new ZnII coordination polymer-based fluorescent sensor toward antibiotics. (18th October 2022)

• Record Type: Journal Article
• Authors: Wang, Jin-Jin; Li, Le-Qian; Zhu, Zi-Hao; Zheng, Teng-Fei; Xu, Hui; Peng, Yan; Chen, Jing-Lin; Liu, Sui-Jun; Wen, He-Rui
• Is Part Of: New journal of chemistry. Volume 46:Number 43(2022)
• Page Start: 20623
• Page End: 20628
• Publication Date: 2022-10-18
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d2nj03797a
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : A new Zn II -based coordination polymer could selectively and sensitively recognize NFT and DCN via turn-off effect. Interestingly, a mixed matrix film for visualizable sensing has been successfully developed. Abstract : Due to the excellent fluorescence properties of organic fluorescent ligand 4, 7-bi(1 H -imidazol-1-yl)benzo-[2, 1, 3]thiadiazole (BIBT), luminescent coordination polymers (CPs) or metal–organic frameworks constructed from BIBT have received our attention. In this work, by the self-assembly of BIBT and Zn(ii ) ions, the formation of a two-dimensional (2D) CP with a formula [Zn2 (BIBT)(AIPA)2 ] n (JXUST-17, H2 AIPA = 5-aminoisophthalic acid) has been achieved. X-ray single-crystal diffraction analysis reveals that the adjacent Zn II ions are connected by amino and carboxylate groups from AIPA 2− ligands to form a 2D layer structure and the neighboring layers are further linked by BIBT ligands to construct a 2D double-layer structure. Luminescence investigation suggests that JXUST-17 not only possesses excellent detection capability but also exhibits excellent selectivity toward nitrofurantoin (NFT) and 2.6-dichloro-4-nitroaniline (DCN). Furthermore, mixed matrix membranes are developed by the dispersion of JXUST-17 with polymethyl methacrylate in DMA solution to realize a rapid and visualizable luminescence response towards NFT.