高等学校化学学报

高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (3): 343.

• 论文 • 上一篇    下一篇

阳离子艳蓝的薄层光谱电化学研究

沈报恩, 王华伟, 彭图治, 王国顺   

  1. 杭州大学化学系, 杭州, 310028
  • 收稿日期:1993-03-04 修回日期:1993-06-10 出版日期:1994-03-24 发布日期:1994-03-24
  • 通讯作者: 沈报恩,男,56岁,副教授.
  • 作者简介:沈报恩,男,56岁,副教授.
  • 基金资助:

    浙江省自然科学基金

Spectroelectrochemical Investigation on Basic Blue

SHENB Bao-En, WANG Hua-WEi, PENG Tu-Zhi, WANG Guo-Shun   

  1. Department of Chemistry, Hangzhou University, Hangzhou, 310028
  • Received:1993-03-04 Revised:1993-06-10 Online:1994-03-24 Published:1994-03-24

PDF (PC)

被引次数

7

摘要： 用薄层光谱电化学技术研究了阳离子艳蓝的电还原过程。薄层循环伏安图表明阳离子艳蓝有一对接近可逆的氧化还原峰。从光谱发现它有顺反异构体互变现象与变色效应。在氧存在时,循环伏安图和光谱图上均出现新峰,推测阳离子艳蓝分子与氧分子能形成电荷转移络合物。测得阳离子艳蓝电还原的式电极电势、电子转移数以及扩散系数等参数。并讨论了可能的电极过程。

关键词: 阳离子艳蓝, 薄层光谱电化学, 变色效应, 互变异构现象, 电荷转移络合物

Abstract: The electrochemical reduction of Basic Blue was investigated by means of thin-layer spectroelectrochemical technique at SnO2 film optically transparent electrode.The nearly reversible redox peaks of basic blue were shown on the thin layer cyclic voltammogram.Spectroscopic experiment found the cis-trans-tautomerism and the color change effect of basic blue.In the presence of Oxygen, a new peak appears on the cyclic voltammogram and on the spectrum.It was supposed that the basic blue and the oxygen molecule can form a charge transfer complex.The formal potentials and the electron transfer numbers as well as the diffusion coefficient of basic blue were determined by means of thin-layer spectroelectrochemical technique.The possible electrode process was discussed on the basis of these measurements.

Key words: Basic blue, Thin-layer spectroelectrochemistry, Color change effect, Tautomerism, Charge transfer complex

TrendMD: