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Issue 75, 2014
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2,2′-(Hydrazine-1,2-diylidenedimethylylidene)bis(6-isopropyl-3-methylphenol) based selective dual-channel chemosensor for Cu2+ in semi-aqueous media

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Abstract

A novel receptor based on a substituted salicylaldehyde derivative, 2,2′-(hydrazine-1,2-diylidenedimethylylidene)bis(6-isopropyl-3-methylphenol) (1), was synthesized and characterized using various spectroscopic techniques. The UV-visible spectroscopic studies of the receptor showed selectivity for Cu2+ in the presence of other metal ions by a change in colour from colourless to yellow. A red shift was observed with the appearance of a new absorption band at 450 nm in CH3OH–H2O (60 : 40 v/v). Fluorescence studies of the receptor showed “turn-off” recognition properties for the Cu2+ ion with a 1 : 1 binding stoichiometry and the detection limit was 50 nM.

Graphical abstract: 2,2′-(Hydrazine-1,2-diylidenedimethylylidene)bis(6-isopropyl-3-methylphenol) based selective dual-channel chemosensor for Cu2+ in semi-aqueous media

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Publication details

The article was received on 17 May 2014, accepted on 06 Aug 2014 and first published on 06 Aug 2014


Article type: Paper
DOI: 10.1039/C4RA04656K
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RSC Adv., 2014,4, 39639-39644

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    2,2′-(Hydrazine-1,2-diylidenedimethylylidene)bis(6-isopropyl-3-methylphenol) based selective dual-channel chemosensor for Cu2+ in semi-aqueous media

    U. Fegade, A. Saini, S. K. Sahoo, N. Singh, R. Bendre and A. Kuwar, RSC Adv., 2014, 4, 39639
    DOI: 10.1039/C4RA04656K

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