A comparative study of organic electron transfer redox mediators: electron transfer kinetics for triarylimidazole and triarylamine mediators in the oxidation of 4-methoxybenzyl alcohol

作者：Lu Nan ning; Yoo Seung Joon; Li Long Ji; Zeng Cheng Chu^*; Little R Daniel

来源：Electrochimica Acta, 2014, 142: 254-260.

DOI：10.1016/j.electacta.2014.07.105

• triarylimidazoles
• triarylamines
• diffusion coefficient
• heterogeneous electron transfer
• homogeneous electron transfer

The triarylimidazoles (TAIs) constitute a promising class of organic electron transfer redox mediators that have been used to achieve indirect electrochemical C-H bonds activation and functionalization. Herein we report the diffusion and electron transfer rates for the oxidation of 4-methoxybenzyl alcohol using TAI and compare its electrochemical behavior with that of tris(4-bromophenyl)amine (TBPA). The results contribute to our understanding of the electron transfer process of electrocatalytic oxidation using TAIs, and offer useful guidelines for their further development and use.

• 出版日期2014-10-1
• 单位北京工业大学