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  • P-ISSN1225-0163
  • E-ISSN2288-8985
  • SCOPUS, ESCI, KCI

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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Coumarin 유도체들의 전기화학적 환원과 형광성의 증강

Enhancement of Fluorescent Properties and Electrochemical Reduction of Coumarin Derivatives

분석과학 / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2005, v.18 no.1, pp.89-95
김일광 (원광대학교)
김성현 (원광대학교)
정은주 (원광대학교)
이혜숙 (원광대학교)
천현자 (원광대학교)

Abstract

Studies on the electrochemical reduction of 7-acetoxy-4-bromomethyl-coumarin (ABMC), 7-acetoxymethyl coumarin (AMC), and coumarin in 0.1 M tetraethyl ammonium perchlorate acetonitrile solution were carried out with direct current, differential pulse polarography, cyclic voltammetry, and controlled potential coulometry. The electrochemical reduction of ABMC was proceeded through three irreversible steps coupled with the chemical reactions. The solution color was changed to yellow when the carbonyl group was reduced during second step and the color change was independent with bromo group of ABMC. Fluorescent intensity was highest when the electrochemical reduction was controlled at near the overpotential of supporting electrolyte (-2.3 volts).

keywords
coumarin derivatives, differential pulse polarography, cyclic voltammetry, electrochemical reduction, fluorescence

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