Magnetic Characterization and Computational Modeling of Poly(phenylacetylene)s Bearing Stable Radical Groups

Hiroyuki Nishide, Takashi Kaneko, Masukazu Igarashi, Eishun Tsuchida, Naoki Yoshioka, Paul M. Lahti

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The magnetic properties of poly(phenylacetylene)s with radical groups at the paraposition, poly[(3,5-di-tert-butyl-4-oxyphenyl)acetylene] (1), poly[[4-[(3,5-di-tert-butyl-4-oxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]phenyl]acetylene] (2), and poly[[4-(N-tert-butyl-N-oxyamino)-phenyl]acetylene] (3), were studied with a SQUID magnetometer. The magnetization and magnetic susceptibility indicated unexpected antiferromagnetic interactions between the radical sites. The exchange interaction observed in these conjugated polyradicals was discussed in connection with their computationally modeled structures.

Original languageEnglish
Pages (from-to)3082-3086
Number of pages5
Issue number11
Publication statusPublished - 1994 May 1


ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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