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• W4200502671 abstract "Abstract In this work, 5‐(4‐aminophenyl)‐10,15,20‐tris(4‐sulfonatophenyl)porphyrin trisodium salt was reacted with 4‐R‐2,6‐diformyl phenol (R: ‐Me, ‐Et or ‐ t butyl) to obtain dimeric porphyrin‐Schiff base ligands as their sodium salts [Na 6 (H 5 L 1 )‐Na 6 (H 5 L 3 ). The Mn 3+ , Cu 2+ , and Zn 2+ complexes of the water‐soluble porphyrin‐Schiff base ligands were also prepared, and their structures were characterized by the spectroscopic and analytical methods. The ligands exhibited H or J‐aggregates with the change in pH. The water‐soluble ligands showed reversible diffusion‐controlled redox processes involving the π‐ring system of the porphyrin. The chemosensor properties of the ligands Na 6 (H 5 L 1 )‐Na 6 (H 5 L 3 ) towards cations or anions were studied by colorimetric and spectrophotometric methods. Na 6 (H 5 L 1 ) showed selective sensing abilities towards SO 4 2− and Cu 2+ , while Na 6 (H 5 L 3 ) has selectivity for I − , Ag + , and Co 2+ ions. The ligands were also tested as a fluorimetric probes for the detection of nitro‐aromatic compounds [nitrobenzene (NB), 2,4‐dinitrophenol (DNP) and 2,4,6‐trinitrophenol (TNP)]. Na 6 (H 5 L 2 ) exhibits selective and sensitive sensing abilities for nitrobenzene with high quenching constants ( K sv = 3.80 × 10 6 M −1 ) and low detection limit (LOD = 0.0091 μM)." @default.
• W4200502671 created "2021-12-31" @default.
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• W4200502671 date "2021-12-02" @default.
• W4200502671 modified "2023-10-17" @default.
• W4200502671 title "Water soluble porphyrin‐Schiff base ligands and their metal complexes: Synthesis, photophysical, electrochemical, and chemosensor properties" @default.
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• W4200502671 doi "https://doi.org/10.1002/aoc.6534" @default.
• W4200502671 hasPublicationYear "2021" @default.
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