ESEEM study on a stable paramagnetic center in polydiacetylene having a π-conjugated ladder structure

T. Ikoma, S. Okada, H. Nakanishi, K. Akiyama, S. Tero-Kubota

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Using two-, three- and five-pulse methods, we have measured the electron spin echo envelope modulation (ESEEM) of a stable paramagnetic center existing in a non-doped ladder polymer, in which two polydiacetylenes are conjugated in each repeating unit. A relatively deep modulation effect owing to weak hyperfine interaction with protons was observed. The number of interacting protons was estimated to be a few tens based on the analysis of the modulation amplitude. The interaction with many protons implies that the paramagnetic center in the ladder polydiacetylene also possesses a wavefunction delocalized on several units in the π-conjugated system like the spin solitons in polyacetylene.

Original languageEnglish
Pages (from-to)285-289
Number of pages5
JournalSolid State Communications
Volume117
Issue number5
DOIs
Publication statusPublished - 2001 Jan 9

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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