Tetrahedron Letters

A thiourea-based chromoionophore for selective binding and sensing of acetate

R Kato, S Nishizawa, T Hayashita, N Teramae

Index: Kato, Ryo; Nishizawa, Seiichi; Hayashita, Takashi; Teramae, Norio Tetrahedron Letters, 2001 , vol. 42, # 30 p. 5053 - 5056

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Citation Number: 159

Abstract

Highly selective binding and sensing of acetate over various monovalent inorganic anions (MeCO2−≫ H2PO4−> Cl−, Br−, I−, SCN−, NO3−, HSO4−, ClO4−) are achieved by N, N′- bis (p-nitrophenyl) thiourea as a hydrogen-bonding chromoionophore in 1% water–99% MeCN (v/v), and acetic acid in vinegar is successfully determined by the complexation- induced chromogenic response of this chromoionophore.

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