✦ LIBER ✦

Solvent dependence of excited molecule-free radical interactions studied by means of time-resolved electron spin resonance

✍ Scribed by Y.J. I'Haya; S. Kanosue

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 419 KB
Volume: 216
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)e1268-l

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✦ Synopsis

Electron spin polarization transfer phenomena have been studied by time-resolved electron spin resonance spectroscopy with pyrazine as a donor and nitroxyl radicals as acceptors. We found that mechanisms are different depending on solvents used. Importance of doublet to doublet spin polarization transfer is demonstrated in 2-propanol solutions.

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Free Radical Formation from Excited Stat

Free Radical Formation from Excited States of Aliphatic Carboxylic Acids and esters in solution as studied by electron spin resonance

✍ Tony Kaiser; Loris Grossi; Hanns Fischer 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 German ⚖ 547 KB

## Abstract During UV.‐irradiation of aliphatic carboxylic acids and esters in aqueous and nonaqueous solutions various alkyl and acyl type radicals derived from parent compounds and solvents have been observed by ESR.‐spectroscopy. The structures of the radicals point to α‐cleavage, β‐dehalogenati