Novel aromatic N-oxyl radical based on the benzo[g]quinoline skeleton: Synthesis and intermolecular ferromagnetic interaction

Masaru Yao, Hidenari Inoue, Naoki Yoshioka

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A novel stable organic radical, 2,2-diphenyl-1,2-dihydrobenzo[g]quinoline- N-oxyl (2), has been synthesized and structurally characterized in order to examine the ring extension effect on the known derivative, 2,2-diphenyl-1,2- dihydroquinoline-N-oxyl (1). Based on SQUID measurement, 2 exhibited a ferromagnetic interaction obeying the Bleaney-Bowers equation with 2J = +4.6 cm -1. The X-ray analysis revealed an intermolecular edge-edge association of the aryl ring and N-oxyl moiety in the crystal of 2. The bifurcated edge-edge contacts between the α-spin site (nitroxyl O atom) and the β-spin site (aryl-H atoms) are responsible for the ferromagnetic interaction of 2.

Original languageEnglish
Pages (from-to)11-16
Number of pages6
JournalChemical Physics Letters
Issue number1-3
Publication statusPublished - 2005 Jan 24


ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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