Addition of radicals to quinones. ESR study of some radical reactions of 3,3′,5,5′-tetra-tert-butylstilbene-4,4′-quinone

Tatiana L. Simándi, A. Rockenbauer, LászlóI Simándi

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Reactions of 3,3′,5,5′-tetra-tert-butylstilbene-4,4′-quinone with free radicals from the decomposition of azo compounds and peroxides (R.) have been studied by ESR spectroscopy. Relatively stable phenoxyl-type free radicals are formed via addition of R. across the exo CC bond. Their coupling constants with the methine proton reflect steric effects. Further addition products lead to sterically crowded molecules which spontaneously dissociate into radicals via C(4)C(7) bond cleavage.

Original languageEnglish
Pages (from-to)555-558
Number of pages4
JournalEuropean Polymer Journal
Volume31
Issue number6
DOIs
Publication statusPublished - 1995

Fingerprint

Quinones
quinones
Free radicals
free radicals
Free Radicals
Paramagnetic resonance
Azo Compounds
azo compounds
Peroxides
peroxides
Protons
cleavage
Spectroscopy
Decomposition
decomposition
Molecules
protons
products
spectroscopy
molecules

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Physics and Astronomy(all)

Cite this

Addition of radicals to quinones. ESR study of some radical reactions of 3,3′,5,5′-tetra-tert-butylstilbene-4,4′-quinone. / Simándi, Tatiana L.; Rockenbauer, A.; Simándi, LászlóI.

In: European Polymer Journal, Vol. 31, No. 6, 1995, p. 555-558.

Research output: Contribution to journalArticle

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