A long-lived iminoxyl radical by electrooxidation of 1-nitroso-2-naphthol

✍ Scribed by Andrej Kržan; Delanson R. Crist; Vaclav Horák

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 420 KB
• Volume: 9
• Category: Article
• ISSN: 0894-3230
• DOI: 10.1002/(sici)1099-1395(199610)9:10<695::aid-poc839>3.0.co;2-o

✦ Synopsis

Cyclic voltammetry of 1-nitroso-2-naphthol in the potential region 0 to 1.0 V YS Ag/AgCI using glassy carbon and platinum electrodes shows a reversible redox couple. The electrode process is diffusion controlled and corresponds to an EC mechanism. The one-electron oxidation product, an iminoxyl radical, is characterized by a triplet ESR signal at g = 2.0067 further split by three ring hydrogens. This radical is unusually long-lived, with half-life times of 150 s in water and 3600 s in acetonitrile.