ENDOR study of benzothiazolone azine cation radicals by means of a TM110 mode cavity.

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概要

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• The electron nuclear double resonance (ENDOR) spectra of benzothiazolone azine cation radicals were observed by means of an ENDOR spectrometer equipped with a TM<SUB>110</SUB> mode cavity. Highly diluted solutions of the radicals and a high radiofrequency power of 300 W facilitated the ENDOR observation. The obtained ENDOR values are different from the previously published results determined only from the ESR data, especially for the substituted alkyl groups. The assignment of the hyperfine coupling constants was made on the basis of the molecular orbital calculations as well as the re-examination of the ESR spectrum simulation. Good agreement between the calculated and the measured spectra is obtained if one assumes that the hyperfine coupling constants of the two different sets of nitrogen nuclei are equal as has been pointed out earlier.

• 公益社団法人 日本化学会の論文

著者

• Deguchi Yasuo

  College Of Liberal Arts And Science Kyoto University

• Yamauchi Jun

  College Of Liberal Arts And Sciences Kyoto University

• Okada Keiichi

  College of Liberal Arts and Sciences, Kyoto University

• Lopez Javier

  College of Liberal Arts and Sciences, Kyoto University

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