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- W3136137499 abstract "• Pyridylalkyl mono-core substituted naphthalenedimides interact with metal ions. • The interaction of NDIs with of Cu 2+ and Fe 3+ induces a colorimetric change. • NDI-Cu 2+ complexes act as Fe 2+ and Mg 2+ ON / OFF fluorescent dual probes. • A selective interaction and removal of Hg 2+ from water by these NDIs. In this work, the interaction of three different pyridylalkyl mono-core substituted naphthalenedimides (NDIs) with metal ions was studied by UV-Vis and fluorescence spectroscopy. The influence of pyridine substituents position, the spacer length, and solvent over the metal ion recognition was investigated. The most sensible responses observed were with Cu 2+ and Fe 3+ ions, showing a remarkable change in their colorimetric and fluorescent properties. The prior formation of NDI-Cu 2+ ( 2a and 2b ) complexes generates a unique response towards Fe 2+ and Mg 2+ , promoting an OFF/ON response and a colorimetric change, acting as a dual probe for Cu 2+ and Fe 2+ or Cu 2+ and Mg 2+ . Finally, NDIs 2b and 2c show a specific and selective response towards Hg 2+ ions in water, forming a solid complex removing the Hg 2+ from the aqueous media achieving a removal efficiency up to 92%. NDIs 2b and 2c have potential as probes and removal of Hg 2+ ions." @default.
- W3136137499 created "2021-03-29" @default.
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- W3136137499 date "2021-07-01" @default.
- W3136137499 modified "2023-10-18" @default.
- W3136137499 title "Versatile optical response of pyridylalkyl naphthalenediimides in the interaction with metal ions" @default.
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- W3136137499 doi "https://doi.org/10.1016/j.molstruc.2021.130277" @default.
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