Aromatic dicarboxylates induced structural diversity of CdII metal-organic frameworks from a 2D layer to a 3D pillar-layer network for fluorescence sensing of cations, anions and L-serine

Hong-Li Yang; Rui-Jie Zhang; Teng-Fei Zheng; Chen Cao; Yan Peng; Jing-Lin Chen; He-Rui Wen; Sui-Jun Liu

doi:10.1039/d5dt00305a

Aromatic dicarboxylates induced structural diversity of Cd^II metal-organic frameworks from a 2D layer to a 3D pillar-layer network for fluorescence sensing of cations, anions and L-serine

Dalton Trans. 2025 Jun 25. doi: 10.1039/d5dt00305a. Online ahead of print.

Authors

Hong-Li Yang¹, Rui-Jie Zhang¹, Teng-Fei Zheng¹, Chen Cao¹, Yan Peng¹, Jing-Lin Chen¹, He-Rui Wen¹, Sui-Jun Liu¹

Affiliation

¹ School of Chemistry and Chemical Engineering, Jiangxi Provincial Key Laboratory of Functional Crystalline Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P.R. China. sjliu@jxust.edu.cn.

PMID: 40557779
DOI: 10.1039/d5dt00305a

Abstract

Two distinct Cd^II metal-organic frameworks (MOFs) with the formulas {[Cd(BBZB)(oba)]·H₂O}_n (JXUST-45) and {[Cd(BBZB)(bpdc)]·2H₂O}_n (JXUST-46) featuring 2D layer and 3D pillar-layer structures, respectively, have been prepared, which were regulated by aromatic dicarboxylate ligands (4,4'-diphenyl ether dicarboxylic acid, H₂oba; 4,4'-biphenyldicarboxylic acid, H₂bpdc; and 4,7-bis(1H-benzimidazol-1-yl)-2,1,3-benzothiazole, BBZB). JXUST-45 and JXUST-46 can be considered good fluorescence sensors toward Al³⁺, Fe³⁺, AcO^-, Cr₂O₇^2-, and L-serine. Meanwhile, JXUST-45 and JXUST-46 have good thermal stability and recovery ability. In addition, JXUST-45- and JXUST-46-based fluorescent test papers and light-emitting diode lamps have been further developed to realize naked-eye detection of Al³⁺, Fe³⁺, AcO^-, Cr₂O₇^2-, and L-serine, which has great potential for practical applications.