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Intermolecular Ferromagnetic Interaction in π-Conjugated Nitroxide Radical Crystals

Takayuki Ishida, Mitsutoshi Nakagawa, Ron Imachi, Yuzo Akui, Shin-Ya Masaoka, Motohiro Suzuki, Daisuke Hashizume, Masanoriyasui, Fujiko Iwasaki, Takashi Nogami

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Abstract

The crystal of 9,9-dipropyl-9,10-dihydroacridin-10-yloxyl exhibited a positive Weiss constant (±0.77 K) due to a 3-D network of ferromagnetic interactions. The crystal of 6,6-bis(p-ethylphenyl)-5,6-dihydrophenanthridin-5-yloxyl was revealed to possess a ferromagnetic dimer structure with 2J/kB = ±3.5 K. Several bisbiphenylyl nitroxide radicals showed ferromagnetic interaction.

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What this paper is about

The crystal of 9,9-dipropyl-9,10-dihydroacridin-10-yloxyl exhibited a positive Weiss constant (±0.77 K) due to a 3-D network of ferromagnetic interactions. The crystal of 6,6-bis(p-ethylphenyl)-5,6-dihydrophenanthridin-5-yloxyl was revealed to possess a ferromagnetic dimer structure with 2J/kB = ±3.5 K. Several bisbiphenylyl nitroxide radicals showed ferromagnetic interaction.

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OpenAlex reports 5 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

The crystal of 9,9-dipropyl-9,10-dihydroacridin-10-yloxyl exhibited a positive Weiss constant (±0.77 K) due to a 3-D network of ferromagnetic interactions. The crystal of 6,6-bis(p-ethylphenyl)-5,6-dihydrophenanthridin-5-yloxyl was revealed to possess a ferromagnetic dimer structure with 2J/kB = ±3.5 K. Several bisbiphenylyl nitroxide radicals showed ferromagnetic interaction.

Key concepts: Nitroxide mediated radical polymerization, Ferromagnetism, Intermolecular force, Intermolecular interaction, Dimer, Conjugated system, Radical, Crystallography

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