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- W2891604361 abstract "Herein, we report the synthesis and characterization of a chemosensor, 5-(diethylamino)-2-(2,3-dihydro-1H-perimidin-2-yl)phenol (HL), synthesized from a condensation between 4-(diethylamino)salicylaldehyde and 1,8-diaminonaphthalene. Upon investigation of the sensing properties of HL, it was found that this sensor may be employed for simple yet efficient detection of Cu2+ in aqueous methanol solutions. The selective and ratiometric response to Cu2+ yielded an outstandingly low limit of detection of 3.7 nM by spectrophotometry and is also useful as a naked-eye sensor from 2.5 μM. The system was studied by spectrophotometric pH titrations to determine Cu2+ binding constants and complex speciation. Binding of Cu2+ to HL occurs in 1:1 stoichiometry, in good agreement with high-resolution electrospray ionization mass spectrometry (ESI-HRMS) results, Cu2+ titrations, and Job’s plot experiments, while the coordination geometry was tentatively assigned as square pyramidal by spectroscopic studies." @default.
- W2891604361 created "2018-09-27" @default.
- W2891604361 creator A5011457772 @default.
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- W2891604361 date "2018-09-04" @default.
- W2891604361 modified "2023-10-14" @default.
- W2891604361 title "Ultrasensitive Colorimetric and Ratiometric Detection of Cu<sup>2+</sup>: Acid–Base Properties, Complexation, and Binding Studies" @default.
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- W2891604361 doi "https://doi.org/10.1021/acsomega.8b01483" @default.
- W2891604361 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6645550" @default.
- W2891604361 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31459173" @default.
- W2891604361 hasPublicationYear "2018" @default.
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