Effects of the receptors bearing phenol group and copper(II) on the anion recognition and their analytical application

Two novel artificial receptors based on diamide and bearing phenol group and copper(II) have been synthesized. Their anion-binding properties are evaluated for F −, Cl −, Br −, I −, AcO −, H 2PO 4 − and OH − by UV–vis and 1H NMR titration experiments to further elucidate the impact of phenol group a...

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Bibliographic Details
Published in:Talanta (Oxford) 2007-09, Vol.73 (2), p.296-303
Main Authors: Shang, Xue-Fang, Lin, Hai, Cai, Zun-Sheng, Lin, Hua-Kuan
Format: Article
Language:English
Subjects:
Analytical application
Analytical chemistry
Anion recognition
Chemistry
Copper(II)
Exact sciences and technology
Phenol group
Spectrometric and optical methods
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Summary:Two novel artificial receptors based on diamide and bearing phenol group and copper(II) have been synthesized. Their anion-binding properties are evaluated for F −, Cl −, Br −, I −, AcO −, H 2PO 4 − and OH − by UV–vis and 1H NMR titration experiments to further elucidate the impact of phenol group and copper(II) on the chemistry of anion-recognition. Results indicate that the interacted model of fluoride anion with receptor 1 is different from other anions and the 1H NMR signals of receptor 2 occur changes after the addition of fluoride anion. This may be related with the small radius and strong electronegative property of fluoride. The receptors should have many chemical and analytical applications and the sensing principle should be widely applicable to the sensing of other receptors.
ISSN:0039-9140
1873-3573
DOI:10.1016/j.talanta.2007.03.042