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Sensor activity and logic behavior of dihydroxyphenyl hydrazone derivative as a chemosensor for Cu2+ determination in alkaline aqueous solutions

Paper ID Volume ID Publish Year Pages File Format Full-Text
26104 43935 2015 9 PDF Available
Title
Sensor activity and logic behavior of dihydroxyphenyl hydrazone derivative as a chemosensor for Cu2+ determination in alkaline aqueous solutions
Abstract

•A novel highly water-soluble in alkaline window hydrazone derivative is synthesized.•Compound is designed as an “off–on–off” molecular pH probe.•Probe manifests selective signaling response to Cu2+ in alkaline aqueous medium.•Logic functions disabled XNOR and disabled IMPLICATION are achieved.•Two output combinatorial logic circuit with three chemical inputs is demonstrated.•Probe is able to work as a magnitude digital comparator with disable capability.

The synthesis, sensor activity and logic behavior of a novel highly water-soluble under alkaline conditions dihydroxyphenyl hydrazone derivative is reported. The changes in the photophysical properties of the compound as a function of pH were investigated. Novel hydrazone manifests “off–on–off” fluorescence response toward pH in alkaline window due to the reversible transformation of the monophenolate ion into a keto-hydrazine dianion and deprotonation of the trifluoroacetamide moiety in strong alkaline media. The synthesized compound shows excellent selective signaling properties toward Cu2+ ions over the representative metal ions. Due to the remarkable absorption and fluorescence changes as a function of pH and in the presence of Cu2+ ions novel compound is able to act as a two output combinatorial logic circuit with three chemical inputs. It executes disabled XNOR and IMPLICATION gates, therefore is capable of working as a magnitude digital comparator with disable capability.

Keywords
(E)-2,2,2-Trifluoro-N′-(1-(2,4-dihydroxyphenyl)ethylidene)acetohydrazide; “Off–on–off” pH probe; Selective Cu2+ sensing in alkaline aqueous media; Disabled XNOR and IMPLICATION logic gates; Two output combinatorial logic circuit; Magnitude digital compara
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Sensor activity and logic behavior of dihydroxyphenyl hydrazone derivative as a chemosensor for Cu2+ determination in alkaline aqueous solutions
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 311, 1 October 2015, Pages 16–24
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us