A Blue Emission of Zirconium (IV) Complex Based on 2, 6-Pyridinedicarboxylic Acid Ligand: Syntheses, Crystal Structure, and Luminescence Sensing

• Published in: Journal of molecular structure 2024-01, Vol.1296, p.136847, Article 136847
• Main Authors: Xian, Zhong-Mei, Xiang, Zeng-Ni, Wu, Yu, Song, Guo-Long, Gao, Fu-Hui, Mei, Jia-Xi, Wu, Ling, Yu Xu, Mei, Liang, Guang-Ming, Wang, Xu, Gou, Xing-Long
• Format: Article
• Language: English
• Subjects: Carboxylates; Crystal structures; Photoluminescence; Zirconium Complex
• ISSN: 0022-2860; 1872-8014
• DOI: 10.1016/j.molstruc.2023.136847

•A novel zirconium complex was synthesized under solvothermal system.•The crystals of zirconium complex exhibit blue luminescence.•The zirconium complex is highly selective and sensitive to detection of Co2+ ions. A novel blue emission of zirconium complex, formulated as [Zr(pydc)3]·[(CH3)2NH2]2 (1), has been synthesized by using a mixture of zirconium nitrate and 2, 6-pyridinedicarboxylic acid (H2). The complex 1 presents a three-dimensional supramolecular network structure due to the intermolecular N—H···O, O—H···O hydrogen bonds. Additionally, the crystals of 1 exhibit blue luminescence and demonstrate a highly selective and sensitive sensing capability for detection of Co2+ ions with a Ksv value of 1.22 ×104 M−1 and limit of detection (LOD) of 1.20 × 10−5 M. Furthermore, the fluorescence lifetime and quantum yield of the complex 1 is τ= 6.22 μs and Φ= 25.9 %. a novel blue emission of zirconium complex has been synthesized with selective and sensitive sensing capability for detection of Co2+ ion. [Display omitted]