高等学校化学学报

高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (4): 547.

• 研究简报 • 上一篇    下一篇

金电极上钴-2,2′-联吡啶的电化学特性及其与生物小分子腺嘌呤的相互作用

赵广超, 王雪梅, 陈洪渊   

  1. 南京大学化学系, 配位化学研究所, 南京, 210093
  • 收稿日期:1996-06-12 出版日期:1997-05-24 发布日期:1997-05-24
  • 通讯作者: 陈洪渊.
  • 作者简介:赵广超, 男, 32岁, 硕士研究生.
  • 基金资助:

    国家自然科学基金

Electrochemical Behavior of the Complex of Cobalt-Bipyridyl on Gold Electrode and Interaction of the Complex with Adenine

ZHAO Guang-Chao, WANG Xue-Mei, CHEN Hong-Yuan   

  1. Department of Chemisty, Nanjing University, Nariing, 210093
  • Received:1996-06-12 Online:1997-05-24 Published:1997-05-24

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关键词: 钴-2, 2'-吡啶配合物, 腺嘌呤, 电化学, 现场光谱电化学

Abstract: Electrochemical behavior of Co (bpy)32+ on gold electrode and interaction of thiscomplex with adenine was investigated.Voltammetric experiments indicated that the electro-chemistry of Co(bpy)32+ on gold electrode was quasi-reversible with one-electron transfer re-action in phosphate buffer(pH=7.0).The formal potential, E°'was 0.057 V.The electrontransfer rate constant, KS, was 1.43×10-2 cm/s.This property was characterized by spec-troelectrochemistry.Both anodic and cathodic peak potentials shifted to more positive valuesin the presence of adenine.In this case, E°'shifted to more positive potentials by 15 mV.The KS'descended about three times.The complex ratio was 1: 1.The complex constant was64.2 L/mol.The interaction was testified by electrochemistry and spectrum of adenine.

Key words: Complex of cobalt-bipyridyl, Adenine, Electrochemistry, In situ spectroelectrochemistry

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