Non-uniform Self-folding of Helical Poly(fluorenevinylene) Derivatives in the Solid State Leading to Amplified Circular Dichroism and Circularly Polarized Light Emission

Pengfei Wu, Adriana Pietropaolo, Mariagrazia Fortino, Shuhei Shimoda, Katsuhiro Maeda, Tatsuya Nishimura, Masayoshi Bando, Naofumi Naga, Tamaki Nakano

研究成果: Article査読

1 被引用数 (Scopus)

抄録

An unprecedented non-uniform self-folding of artificial polymer chains composed of turn moieties and stretched segments is presented through the design of a set of optically active poly(fluorene-2,7-diylethene-1,2-diyl) (poly(fluorenevinylene)) derivatives bearing a neomenthyl group and a pentyl group attached at the 9-position of fluorene backbone at various ratios. The folded structure is formed and stabilized through inter-chain interactions in the solid state, leading to remarkably enhanced chiroptical properties (chirality amplification) in terms of circular dichroism (CD) and circularly polarized light (CPL) emission. This phenomenon is rationalized by experimental and theoretical CD and CPL spectral analyses. The polymer arrangements in the solid state were further assessed through transmission electron microscopic observations combined with enhanced sampling molecular dynamics simulations in the solid state revealing the thin film organizations.

本文言語English
論文番号e202210556
ジャーナルAngewandte Chemie - International Edition
61
43
DOI
出版ステータスPublished - 2022 10月 24

ASJC Scopus subject areas

  • 触媒
  • 化学 (全般)

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