Creation of circularly polarized luminescence from an achiral polyfluorene derivative through complexation with helix-forming polysaccharides: Importance of the meta-linkage chain for helix formation

Tomohiro Shiraki, Youichi Tsuchiya, Takao Noguchi, Shun Ichi Tamaru, Nozomu Suzuki, Makoto Taguchi, Michiya Fujiki, Seiji Shinkai

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

A circularly polarized luminescence (CPL) material has been created by polymer-polymer complexation between a helix-forming polysaccharide, schizophyllan (SPG), and a meta-phenylene-linked polyfluorene derivative (mPFS). Computational modeling revealed that mPFS can adopt a helical structure although a conventional polyfluorene derivative with a para-phenylene linkage tends to enjoy a rigid rodlike conformation. Our detailed experimental examination showed that mPFS forms a chiral nanowire complex through cohelix formation with SPG. We have found, as expected, that this cohelical complex emits highly efficient CPL even in an aqueous solution. The appearance of the high CPL property is due to 1) a high quantum yield of the fluorene unit and 2) immobilization of the helically twisted conformation of mPFS in an isolated manner through cohelix formation with SPG. One can propose, therefore, that the SPG/mPFS complex acts as a new high-performance CPL material with a solvent-dispersible nanowire structure.

Original languageEnglish
Pages (from-to)218-222
Number of pages5
JournalChemistry - An Asian Journal
Volume9
Issue number1
DOIs
Publication statusPublished - Jan 1 2014

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Luminescence
Complexation
Polysaccharides
Nanowires
Derivatives
Conformations
Polymers
Sizofiran
Quantum yield
Immobilization

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Organic Chemistry

Cite this

Creation of circularly polarized luminescence from an achiral polyfluorene derivative through complexation with helix-forming polysaccharides : Importance of the meta-linkage chain for helix formation. / Shiraki, Tomohiro; Tsuchiya, Youichi; Noguchi, Takao; Tamaru, Shun Ichi; Suzuki, Nozomu; Taguchi, Makoto; Fujiki, Michiya; Shinkai, Seiji.

In: Chemistry - An Asian Journal, Vol. 9, No. 1, 01.01.2014, p. 218-222.

Research output: Contribution to journalArticle

Shiraki, Tomohiro ; Tsuchiya, Youichi ; Noguchi, Takao ; Tamaru, Shun Ichi ; Suzuki, Nozomu ; Taguchi, Makoto ; Fujiki, Michiya ; Shinkai, Seiji. / Creation of circularly polarized luminescence from an achiral polyfluorene derivative through complexation with helix-forming polysaccharides : Importance of the meta-linkage chain for helix formation. In: Chemistry - An Asian Journal. 2014 ; Vol. 9, No. 1. pp. 218-222.
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