Bromomalonic acid as a source of photochemically produced Br- ion in the Ru(bpy)(3)(2+)-catalyzed Belousov-Zhabotinsky reaction

被引:46
|
作者
Yamaguchi, T [1 ]
Shimamoto, Y [1 ]
Amemiya, T [1 ]
Yoshimoto, M [1 ]
Ohmori, T [1 ]
Nakaiwa, M [1 ]
Akiya, T [1 ]
Sato, M [1 ]
MatsumuraInoue, T [1 ]
机构
[1] NARA UNIV EDUC,DEPT CHEM,NARA 630,JAPAN
关键词
D O I
10.1016/0009-2614(96)00721-X
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Experimental observation shows that bromomalonic acid (BrMA) is one of the sources of photo-induced Br- ion in the photosensitive Belousov-Zhabotinsky reaction. The rate of Br- production by visible light was measured using a Br--ion-selective electrode in a solution containing BrMA, H2SO4 and Ru(bpy)(3)SO4 but no oxybromine species. The order of reaction was 1 for [BrMA] and [H+], and about 1/2 for the light intensity and [Ru(bpy)(3)(2+)]. Two types of probable photocyclic mechanisms are proposed.
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页码:219 / 224
页数:6
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