Electron spin resonance of phosphorescent triplet molecules observation of the proton hyperfine structure of Δm = ±2 transitions in stretched poly (vinyl alcohol) films

✍ Scribed by Mikio Yagi; Kenshiro Uchida; Jiro Higuchi

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 353 KB
• Volume: 108
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(84)80377-2

✦ Synopsis

By applying a microwave magnetic field parallel to an esternsl magneric field, ESR of naphthalene, quinosaline, quinoline and isoquinotine in their phosphorescent triplet states has been studied at 77 K. The proton hyperfiie structures in the &II = ?2 transitions were distinctly resolved, especially when the stretched film was used as a host, compared with observations in ethanol glasses. The assignment of these ESR signals was carried out with the aid of the stretched-film method.