Redox Potential Inversion by Ionic Hydrogen Bonding between Phenylenediamines and Pyridines
详细信息 查看全文
- 作者：Yi-Chun Chung ; Yi-Jung Tu ; Shih-Hua Lu ; Wan-Chi Hsu ; Kuo Yuan Chiu ; Yuhlong Oliver Su
- 刊名：Organic Letters
- 出版年：2011
- 出版时间：June 3, 2011
- 年：2011
- 卷：13
- 期：11
- 页码：2826-2829
- 全文大小：734K
- 年卷期：v.13,no.11(June 3, 2011)
- ISSN：1523-7052
文摘
In electrochemical oxidations, the second oxidation potential of phenylenediamines (PD) varies because of hydrogen-bonding formation for PD<sup>+鈥?/sup> with pyridines. A linear relationship was obtained for the potential shift as a function of pK<sub>asub> of the protonated pyridines and potential inversion could be observed. The oxidized PD<sup>+鈥?/sup> could also form hydrogen bonding with alcohols and the shift of potential exhibits a different pattern.