Cobalt(II) Coordination Polymers for Highly Sensitive and Selective Turn-On Fluorescence Detection of Sulfamethoxazole.

Liuchang Wang, Hongjiang Ren, Jiangtao Li, Jing Li

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Article in Journal of fluorescence, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 authors.

Liuchang WangThe Key Laboratory for Surface Engineering and Remanufacturing in Shaanxi Province, Key Laboratory of Chemistry of New Material of Functional Inorganic Composites, School of Chemical Engineering, Xi'an University, Xi'an, Shaanxi, China.

Hongjiang RenThe Key Laboratory for Surface Engineering and Remanufacturing in Shaanxi Province, Key Laboratory of Chemistry of New Material of Functional Inorganic Composites, School of Chemical Engineering, Xi'an University, Xi'an, Shaanxi, China.

Jiangtao LiThe Key Laboratory for Surface Engineering and Remanufacturing in Shaanxi Province, Key Laboratory of Chemistry of New Material of Functional Inorganic Composites, School of Chemical Engineering, Xi'an University, Xi'an, Shaanxi, China.

Jing LiThe Key Laboratory for Surface Engineering and Remanufacturing in Shaanxi Province, Key Laboratory of Chemistry of New Material of Functional Inorganic Composites, School of Chemical Engineering, Xi'an University, Xi'an, Shaanxi, China. 529790630@qq.com.

Funding

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6 · The paper itself

Abstract

Two novel Co(II)-based coordination polymers, [Co(HDNA)(bibp)(H₂O)]ₙ (CP1) and {[Co₃(DCPN)₂(4,4'-bibp)₃(H₂O)₄]}ₙ (CP2), were synthesized via hydrothermal reactions using H₃DCPN and different N-donor co-ligands. Structural analysis revealed that CP1 forms a 2D layered network, while CP2 adopts a 1D chain structure extended into a 3D supramolecular framework. Both CP1 and CP2 exhibited excellent fluorescence sensing abilities toward sulfamethoxazole (SMX), with strong enhancement responses. CP1 showed a linear Stern-Volmer relationship (R² = 0.9944) and a binding constant of 1.37 × 10⁴ M⁻¹, while CP2 gave R² = 0.9936 and K = 1.54 × 10⁴ M⁻¹. Both materials displayed high selectivity, anti-interference capacity, and good cycling stability, demonstrating their potential as reusable fluorescent sensors for SMX detection.

Indexed as

Coordination polymerFluorescenceSulfamethoxazole

Identifiers

PMID41489677

DOI10.1007/s10895-025-04678-0

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