| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1440789 | Synthetic Metals | 2015 | 8 Pages |
•We have designed a single fluorescent chemosensor for recognition of Al3+/Zn2+ base on ESIPT.•2-Methyl quinoline-4-carboxylic hydrazide was rarely synthesized.•HL shows a large fluorescence enhancement (120/150-fold) in the presence of Al3+ and Zn2+, respectively.•The detection limits for Al3+/Zn2+ reach at 10−7 M level.
A naphthalene derivative 2-hydroxy-α-naphthaldehyde-(2′-methylquinoline-4′-formyl) hydrazone (HL) as a fluorescent chemosensor for Al3+/Zn2+ in ethanol and water (9:1, v/v) has been designed and synthesized. The receptor shows a large fluorescence enhancement at 509 nm and 543 nm in the present of Al3+ and Zn2+, respectively. The excited-state intramolecular proton transfer (ESIPT) process, coupled with photoinduced electron transfer (PET) process are proposed to explain the observed spectral response.
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