A highly stable 2D Zn-based coordination polymer exhibiting efficiently luminescent sensing towards sulfasalazine. (15th November 2022)

• Record Type: Journal Article
• Authors: Wang, Guang-Lin; Lu, Yue; Wang, Run; Srivastava, Devyani; Kumar, Abhinav; Sakiyama, Hiroshi; Muddassir, Mohd.; Guo, Jian; Jin, Jun-Cheng
• Is Part Of: Polyhedron. Volume 227(2022)
• Publication Date: 2022-11-15
• Subjects: Sulfasalazine -- Sensor -- Anti-interference -- Hirshfeld surface -- Coordination polymer; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2022.116141
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: A new Zn(II) luminescent coordination polymer synthesized and used as sensor for antibiotics. Abstract: A robust 3D supramolecular Zn(II)-based coordination polymer having formula [Zn(H2 L)(bpyp)·H2 O] (1 ) (H3 L = benzene-1, 3, 5-tricarboxylic acid and bpyp = 2, 5-bis(pyrid-4-yl)pyridine) has been hydrothermally synthesized and characterized. The single crystal X-ray analysis revealed that the polymer 1 possesses a paddle wheel-shaped [Zn2 (COO)4 ] subunit extended by H3 L and bpyp linkers, showing high environmental stability, good dispersion and intense green emission in aqueous system. 1 used as a photoluminescent sensor exhibits rapid and efficient fluorescent response towards sulfasalazine (SLA) with strong quenching constants and low detection limit of 1.65 ppm. Additionally, 1 exhibits strong anti-interference and outstanding regeneration capabilities in its sensitive and selective recognition of SLA, which enhances its potential for use as a sensing material. Furthermore, the sensing mechanism study shows that photo-induced charge transfer and competitive absorption are responsible for quenching of emission in 1 .