ESR of the Cationic Triradical of 1,3,5-Tris(diphenylamino)benzene

Kazunari Yoshizawa, Akihisa Chano, Akihiro Ito, Kazuyoshi Tanaka, Tokio Yamabe, Hideo Fujita, Jim Yamauchi, Motoo Shiro

研究成果: ジャーナルへの寄稿記事

117 引用 (Scopus)

抄録

The ESR spectrum of the cationic triradical of 1,3,5-tris(diphenylamino)benzene (TDAB) is discussed. The tricationic state of TDAB was observed by means of cyclic voltammetry. The orange cationic triradical was prepared by oxidation of TDAB with trifluoroacetic anhydride in the presence of tetra-n-butylammonium tetrafluoroborate in CH2Cl2. The ESR spectrum of the randomly oriented radicals in the CH2Cl2 glass agrees well with the theoretical prediction of a quartet (S = 3/2) spin state with a zero-field splitting parameter D′ of 13.1 G (0.0012 cm-1). This is the first observation of a high-spin state of a cationic radical.

元の言語英語
ページ(範囲)5994-5998
ページ数5
ジャーナルJournal of the American Chemical Society
114
発行部数15
DOI
出版物ステータス出版済み - 7 1 1992
外部発表Yes

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Benzene
Paramagnetic resonance
trifluoroacetic anhydride
Cyclic voltammetry
Glass
Observation
Oxidation

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

これを引用

Yoshizawa, K., Chano, A., Ito, A., Tanaka, K., Yamabe, T., Fujita, H., ... Shiro, M. (1992). ESR of the Cationic Triradical of 1,3,5-Tris(diphenylamino)benzene. Journal of the American Chemical Society, 114(15), 5994-5998. https://doi.org/10.1021/ja00041a013

ESR of the Cationic Triradical of 1,3,5-Tris(diphenylamino)benzene. / Yoshizawa, Kazunari; Chano, Akihisa; Ito, Akihiro; Tanaka, Kazuyoshi; Yamabe, Tokio; Fujita, Hideo; Yamauchi, Jim; Shiro, Motoo.

:: Journal of the American Chemical Society, 巻 114, 番号 15, 01.07.1992, p. 5994-5998.

研究成果: ジャーナルへの寄稿記事

Yoshizawa, K, Chano, A, Ito, A, Tanaka, K, Yamabe, T, Fujita, H, Yamauchi, J & Shiro, M 1992, 'ESR of the Cationic Triradical of 1,3,5-Tris(diphenylamino)benzene', Journal of the American Chemical Society, 巻. 114, 番号 15, pp. 5994-5998. https://doi.org/10.1021/ja00041a013
Yoshizawa, Kazunari ; Chano, Akihisa ; Ito, Akihiro ; Tanaka, Kazuyoshi ; Yamabe, Tokio ; Fujita, Hideo ; Yamauchi, Jim ; Shiro, Motoo. / ESR of the Cationic Triradical of 1,3,5-Tris(diphenylamino)benzene. :: Journal of the American Chemical Society. 1992 ; 巻 114, 番号 15. pp. 5994-5998.
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abstract = "The ESR spectrum of the cationic triradical of 1,3,5-tris(diphenylamino)benzene (TDAB) is discussed. The tricationic state of TDAB was observed by means of cyclic voltammetry. The orange cationic triradical was prepared by oxidation of TDAB with trifluoroacetic anhydride in the presence of tetra-n-butylammonium tetrafluoroborate in CH2Cl2. The ESR spectrum of the randomly oriented radicals in the CH2Cl2 glass agrees well with the theoretical prediction of a quartet (S = 3/2) spin state with a zero-field splitting parameter D′ of 13.1 G (0.0012 cm-1). This is the first observation of a high-spin state of a cationic radical.",
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AU - Yoshizawa, Kazunari

AU - Chano, Akihisa

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AU - Tanaka, Kazuyoshi

AU - Yamabe, Tokio

AU - Fujita, Hideo

AU - Yamauchi, Jim

AU - Shiro, Motoo

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AB - The ESR spectrum of the cationic triradical of 1,3,5-tris(diphenylamino)benzene (TDAB) is discussed. The tricationic state of TDAB was observed by means of cyclic voltammetry. The orange cationic triradical was prepared by oxidation of TDAB with trifluoroacetic anhydride in the presence of tetra-n-butylammonium tetrafluoroborate in CH2Cl2. The ESR spectrum of the randomly oriented radicals in the CH2Cl2 glass agrees well with the theoretical prediction of a quartet (S = 3/2) spin state with a zero-field splitting parameter D′ of 13.1 G (0.0012 cm-1). This is the first observation of a high-spin state of a cationic radical.

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