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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 37, Number 2
JKCSEZ 37(2)
April 20, 1993 

Rates and Mechanism of Decomposition of Hydrogen Peroxide by Copper(Ⅱ)-Amines Complexes

구리(Ⅱ)-아민류착물에 의한 과산화수소의 분해반응속도와 메카니즘
Sun-Deuk Kim, Yun-Yeol Shin, Jeong-Eum Park, Chang-Su Kim

김선덕, 신윤열, 박정은, 김창수
구리-아민류착물에 의한 과산화수소의 초기분해속도를 pH7.3~11.8 범위에서 측정하였다. 과산화수소의 분해속도는 pH에 따라 증가하였다가 감소하였다. 이들 실험결과에 일치하는 가능한 메카니즘이 제안되었다. 이 메카니즘은 과산화수소와 구리-아민류착물의 탈양성첨가를 거친 다음에 속도 결정단계에서 퍼옥소구리착물이 생성되는 반응과정과 일치한다.

The decomposition of hydrogen peroxide by copper-amines complexes was studied in the pH range of 7.3∼11.3 by measuring the rate of the decreasing concentration of H2O2. Decomposition rate of hydrogen peroxide increased with increasing pH, and then decreased with increasing pH successively. The mechanism for this type of reaction involves the formation of peroxo complexes in the rate-determining step preceding deprotonation of hydrogen peroxide and copper-amines complexes.

199 - 205
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