高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

以钌(Ⅱ)-联吡啶配合物为催化剂的B-Z化学发光振荡研究

韩鹤友1,2, 何治柯2, 曾云鹗2   

    1. 华中农业大学理学院化学系, 武汉 430070;
    2. 武汉大学化学系, 武汉 430072
  • 收稿日期:2005-11-21 修回日期:1900-01-01 出版日期:2006-11-10 发布日期:2006-11-10
  • 通讯作者: 韩鹤友

Chemiluminescence Oscillation in the Belousov-Zhabotinsky(B-Z) Reaction Catalyzed by Ru(bpy)2+3 Complex

HAN He-You1,2, HE Zhi-Ke2, ZENG Yun-E2   

    1. Department of Chemistry, College of Science, Huazhong Agricultural University, Wuhan 430070, China;
    2. Department of Chemistry, Wuhan University, Wuhan 430072, China
  • Received:2005-11-21 Revised:1900-01-01 Online:2006-11-10 Published:2006-11-10
  • Contact: HAN He-You

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被引次数

3

摘要： 报道了一种以钌(Ⅱ)-联吡啶[Ru(bpy)2+3]为催化剂的B-Z化学发光振荡新现象. 研究了B-Z化学发光振荡反应的影响因素, 并对体系的UV光吸收振荡进行了对比研究, 探讨了化学发光振荡反应的可能机理. 结果表明, 该体系的化学发光振荡是由于氧化态的钌(Ⅱ)-联吡啶被振荡反应过程中的强还原性中间体还原所引起的, 化学发光振荡随时间增加呈现周期性变化.

关键词: B-Z振荡反应, 化学发光振荡, 钌(Ⅱ)-联吡啶

Abstract:

A new chemiluminescence oscillation in the Belousov-Zhabotinsky(B-Z) reaction(reduction of bromate by malonic acid) catalyzed by Ru(bpy)2+3 is reported. The effects of concentrations of Ru(bpy)2+3, KBrO3, malonic acid and H2SO4 on chemiluminescence oscillation reaction were studied. The possible mechanism of chemiluminescence oscillation was also discussed. The chemiluminescence oscillation, which is due to the reduction of Ru(bpy)3+3 by some strongly reducing radical with formation of the emitting excited state of Ru(bpy)2+3, shows a very peculiar time behavior.

Key words: B-Z oscillating reaction, Chemiluminescence oscillation, Ru(bpy)2+3

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