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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 39, Number 1
JKCSEZ 39(1)
February 20, 1995 

 
Title
Rates and Mechanism of the Oxidation of l-Ascorbic Acid with Cu(Ⅱ)-Polyamine Complexes

구리(Ⅱ)-아민류 착물에 의한 l-ascorbic acid의 산화반응속도와 메카니즘
Author
Sun-Deuk Kim*, Jung-Eun Park, Ki-Ho Jang, Han-Chul Shin, Chang-Su Kim

김선덕*, 박정은, 장기호, 신한철, 김창수
Keywords
Abstract
구리(Ⅱ)-아민류 착물에 의한 l-ascorbic acid의 산화반응속도를 pH 4.6에서 Onishi 방법으로 측정하였다. 이 반응의 메카니즘은 l-ascorbic acid가 구리(Ⅱ) 착물에 배위된 다음 속도결정단계에서, 전자이동이 일어나는 내부권 메카니즘에 따라 반응이 진행됨을 알았다.

The rates for the oxidation reaction of l-ascorbic acid by Cu(Ⅱ)-polyamine complexes were measured by Onish's method at the pH 4.6. The oxidation process of l-ascorbic acid is proposed to occur by the inner-sphere mechanism that involves the formation of a Cu(Ⅱ)-ascorbic acid complex and electron transfer at the rate-determining step.

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29 - 34
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