title: A stable radical-substituted radical cation with strongly ferromagnetic interaction: nitronyl nitroxide-substituted 5,10-diphenyl-5,10-dihydrophenazine radical cation.
abstract: A stable radical-substituted radical ion with strongly ferromagnetic intramolecular interaction (J) between the radical and radical ion sites is an attractive spin building block of organic magnets. We prepared 2-nitronyl nitroxide-substituted 5,10-diphenyl-5,10-dihydrophenazine radical cation, 1+. The 1+ salt was stable under aerated conditions at room temperature and had a large J/kB value (>/=+700 K).
authors.affiliation: Departments of Chemistry and Materials Science, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan.
authors.forename: Shinsuke
authors.initials: S
authors.lastname: Hiraoka
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Okamoto
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Kozaki
authors.forename: Daisuke
authors.initials: D
authors.lastname: Shiomi
authors.forename: Kazunobu
authors.initials: K
authors.lastname: Sato
authors.forename: Takeji
authors.initials: T
authors.lastname: Takui
authors.forename: Keiji
authors.initials: K
authors.lastname: Okada