Formation of Aniline-Bonded Catechols in Aqueous Solution and Their Electrochemical Behavior at a Carbon Felt Electrode
✍ Scribed by Shunichi Uchiyama; Yasushi Hasebe; Jiro Nishimoto; Hiroshi Hamana; Yuji Maeda; Yasuhiko Yoshida
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 76 KB
- Volume
- 10
- Category
- Article
- ISSN
- 1040-0397
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✦ Synopsis
The oxidized form of catechol (1,2-benzoquinone) reacts with aniline at neutral pH range and the electroactive 1:1 and 1:2 compounds of catechol and aniline which exhibit separative reversible redox waves are produced and their formal electrode potentials are ¹0.05 V and ¹0.23 V, respectively. The 1:1 compound is considered to be an adduct with pink color and the 1:2 compound is considered to be two anilines substituted catechol from the MS data of molecular weight (290) and 1 H and 13 C NMR data. The 1:2 compound accumulates on the carbon electrode surface due to its affinity to the carbon felt electrode and a detection limit of this compound was found to be 5 × 10 ¹9 M.