ESR study of internal rotation in the isopropyl phenyl nitroxide radical

L. Jókay, A. Rockenbauer, P. Simon, F. Túdós

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The temperature dependence of ESR spectra of the phenyl isopropyl nitroxide radical and its substituted derivatives has been studied. The correctness of spectrum parameters has been controlled by computer simulation. It has been stated that the two ortho protons and one para proton on the phenyl group of the unsubstituted compound are unequivalent, one of them having a coupling constant different from that of the other two ones. At room temperature, the value of the two equivalent ortho couplings is lower than that of the para coupling. At low temperature, however, the value of the two equivalent couplings is higher. These observations are interpreted by the rotational conditions of the phenyl ring.

Original languageEnglish
Pages (from-to)163-168
Number of pages6
JournalJournal of Molecular Structure
Volume46
Issue numberC
DOIs
Publication statusPublished - 1978

Fingerprint

Paramagnetic resonance
Temperature
Protons
Computer Simulation
protons
Derivatives
computerized simulation
Computer simulation
temperature dependence
nitroxyl
rings
room temperature

ASJC Scopus subject areas

  • Structural Biology
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Materials Science (miscellaneous)
  • Atomic and Molecular Physics, and Optics

Cite this

ESR study of internal rotation in the isopropyl phenyl nitroxide radical. / Jókay, L.; Rockenbauer, A.; Simon, P.; Túdós, F.

In: Journal of Molecular Structure, Vol. 46, No. C, 1978, p. 163-168.

Research output: Contribution to journalArticle

Jókay, L. ; Rockenbauer, A. ; Simon, P. ; Túdós, F. / ESR study of internal rotation in the isopropyl phenyl nitroxide radical. In: Journal of Molecular Structure. 1978 ; Vol. 46, No. C. pp. 163-168.
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