Colorimetric detection of in situ metal acetates and fluorides by a bipyridyl‐linked Schiff base. Issue 12 (9th October 2014)

• Record Type: Journal Article
• Authors: Suganya, Sivalingam; Zo, Hye Jin; Park, Jong S.; Velmathi, Sivan
• Is Part Of: Journal of molecular recognition. Volume 27:Issue 12(2014:Dec.)
• Page Start: 689
• Page End: 695
• Publication Date: 2014-10-09
• Subjects: Molecular recognition -- Periodicals; Models, Molecular -- Periodicals; Molecular Conformation -- Periodicals; Molecular Sequence Data -- Periodicals; Molecular Structure -- Periodicals; Carrier Proteins -- Periodicals; 572.8
• DOI: 10.1002/jmr.2393
• Languages: English
• ISSNs: 0952-3499

Abstract

<abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Here, we present a new bipyridyl moiety linked Schiff base (bipy‐1) that is well characterized using spectroscopic techniques. Colorimetric and UV‐vis titrations were used to study the photophysical properties of bipy‐1 in the presence of various tetrabutyl ammonium salt of anions and metal salts containing different counter cations. bipy‐1 showed selective recognition of dimethyl sulphoxide solution of tetrabutyl ammonium salt of F⁻ ion accompanied with a UV‐vis band at 529 nm and interesting binding of aqueous Co, Ni, and Cu acetates/fluorides, as confirmed by distinct color changes from fluorescent green to pink or orange and a strong band around 480–510 nm in the UV‐vis spectrum. However, in the presence of Co, Ni, and Cu countercations, any form of metal acetate/fluorides was found to be able to respond to similar color changes from fluorescent green to pink or orange, showing a band around 480–510 nm. This type of output clearly indicates that the <italic>in situ</italic> formation of Co, Ni, and Cu acetates/fluorides also coordinates with bipyridyl nitrogen atoms. Copyright © 2014 John Wiley &amp; Sons, Ltd.</p> </abstract>