Spin alignment of pseudo two-dimensional poly(aminiumtriphenylene)

Eiji Fukuzaki, Takeshi Ibe, Hiroyuki Nishide

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A room temperature high-spin arylaminium radical polymer satisfying a non-Kekulé and non-disjoint structure was designed and synthesized. A tris(dianisylaminium)triphenylene 3 was synthesized through the oxidative trimerization, the palladium catalyzed amination, and chemical oxidation. The SQUID and NMR shift measurement indicated a quartet state (S = 3/2) for 3 from 2 to 330 K. A model compound 3 was extended to a pseudo two-dimensional poly[anisylaminotris(hexyloxy)triphenylene] 1. Copolycondensation of 2,6,10-tribromo-3,7,11-tris(hexyloxy)triphenylene 4 and 2,6,10-tris(p-anisyl- amino)-3,7,11-tris(hexyloxy)triphenylene 5 using the palladium catalyst gave the polymer 6 with Mn = 5400. This precursor 6 was oxidized to the corresponding polyradical 1. In ΧT values plots, the maximum ΧT value at 3.5 K was 1.38, theoretical value of S = 9/2 is 1.375. These results indicated spin-alignment of the polyradical 1 through the pseudo two-dimensional structure.

Original languageEnglish
Title of host publicationPolymer Preprints, Japan
Pages4235-4236
Number of pages2
Volume54
Edition2
Publication statusPublished - 2005
Event54th SPSJ Symposium on Macromolecules - Yamagata
Duration: 2005 Sep 202005 Sep 22

Other

Other54th SPSJ Symposium on Macromolecules
CityYamagata
Period05/9/2005/9/22

Keywords

  • Aminium radical
  • High-spin molecule
  • Pd-coupling
  • Triphenylene
  • Two-dimensional

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Fukuzaki, E., Ibe, T., & Nishide, H. (2005). Spin alignment of pseudo two-dimensional poly(aminiumtriphenylene). In Polymer Preprints, Japan (2 ed., Vol. 54, pp. 4235-4236)