Highly selective and sensitive lanthanoids coordination polymers sensors for trans, trans-muconic acid, a biomarker of benzene. (1st October 2020)

• Record Type: Journal Article
• Authors: Wang, Guang-Tu; Zhang, Mu-Yin; Chen, Xue; Lu, Zhi-Wei; Fan, Bo-Tao; Li, Kun-Long; Yang, Jie; Duan, Shao-Long; Yang, Cheng-Bo; Zou, Ping
• Is Part Of: Polyhedron. Volume 189(2020)
• Publication Date: 2020-10-01
• Subjects: Coordination polymers -- Sensor -- Trans, trans-muconic acid -- Lanthanoid phosphate -- Luminescence; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2020.114728
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: Two series of new coordination polymers based on trivalent lanthanoids and 4-(pyridyl- N -oxide)methylphosphonic acid (H2 L) were successfully synthesized under hydrothermal conditions. Among Eu-based phosphonate coordination polymers {[Eu2 (L)2 (H2 O)5 ]2Cl·2H2 O}n can be used as a fluorescent sensor to sensitively and selectively sense trans, trans -muconic acid (tt-MA), biomarker of benzene. Highlights: Detecting trans, trans -muconic acid (tt-MA), biomarker of benzene, with excellent sensitivity, great selectivity. Using simulated urine as a detecting sample. Three complexes show 3D framework structures, while other three complexes have 2D structures. Abstract: Two series of new coordination polymers (CPs) based on trivalent lanthanoids and 4-(pyridyl- N -oxide)methylphosphonic acid (H2 L), namely, {[Ln2 (L)2 (H2 O)5 ]2Cl·2H2 O}n (Ln = Eu(1 ), Tb(2 ), Dy(3 )) and [Ln(L)(OH)(H2 O)]n (Ln = Eu(4 ), Tb(5 ), Dy(6 )) have been obtained under hydrothermal conditions and characterized by single-crystal X-ray diffraction(SXRD), powder X-ray diffraction(PXRD) and so on. The single-crystal X-ray diffraction results show that complexes 1 –3 are isomorphic with 3D framework structures, while isomorphic complexes 4 –6 show 2D layered structures. Photoluminescent spectra of complexes 1 and 2 exhibits the strong luminescence characteristic of Eu(III) and Tb(III) ions, respectively. Interestingly, complex 1 can act as a sensor baesd on fluorescence sensing method for detecting trans, trans -muconic acid (tt-MA), biomarker of benzene, with excellent sensitivity, great selectivity and the low LOD for tt-MA which is 2.89 μM. However, the magnetic behaviors of complexes 2, 3, 5 and 6 reveal the presence of antiferromagnetic between the lanthanoid ions.