ジピリジル基を含むジカチオン型アゾベンゼン誘導体とパーフルオロカーボンジカルボン酸よりなるナノ組織体の形成

• 黒岩 敬太

  九州大学大学院工学研究院

• 原田 隆行

  九州大学大学院工学研究院

• 畑中 康宏

  九州大学大学院工学研究院

• 安井 圭

  九州大学大学院工学研究院

• 君塚 信夫

  九州大学大学院工学研究院

書誌事項

タイトル別名

• Supramolecular Nanostructures Formed from Dicationic Azobenzene Compounds and Perfluorinated Dicarboxylic Acids.

抄録

A new family of supramolecular nano-assemblies is obtained from p, p'-bis- (ω-dipyridyl decylamido) -azobenzene bromide (1) and perfluorinated dicarboxylic acid (HOOC- (CF₂) _n-COOH: n=5; 2, n=6; 3, n=7; 4, n=8; 5). Their aggregation characteristics are studied by UV-Vis spectroscopy, dynamic light scattering (DLS), FT-IR spectroscopy, transmission electron microscopy (TEM) and atomic force microscopy (AFM). The FT-IR spectra of 1-4 in the solid state exhibit υ_C=O, υ_OH, and the Fermi resonance peaks at 1685, 2500, and 1900cm^-1, respectively. The observed spectral change indicates that 1-4 is complexed by hydrogen bonds formed between the pyridyl and carboxyl groups. When 1-2 and 1-4 are dispersed in CHCl₃/CH₃OH (39/1 by volume), globular aggregates with the average diameter of 700-1000nm (1-2) and 300-800nm (1-4) are observed by TEM. Consistently, spherical aggregates (diameter: ca. 800 nm (1-2), ca. 400 nm (1-4)) are observed in solution by DLS. Such aggregate structures are not, however, observed for 1-3, 1-5 complexes. Interestingly, nano-ring structures are obtained by dropping CHCl₃/CH₃OH (39/1 by volume) solution of 1-4 on HOPG. The present supramolecular system provides a novel means to construct molecular patterns which are self-assembled from bifunctional hydrocarbon and perfluorinated subunits.

収録刊行物

• 高分子論文集

  高分子論文集 59 (12), 772-777, 2002

  公益社団法人 高分子学会

キーワード

• Azobenzene
• Bipyridyl
• Fluorocarbon
• Hydrogen Bond
• Nano-Wheel
• Self-Assembly

詳細情報

• CRID: 1390282681499367168
• NII論文ID: 130004035516
• DOI: 10.1295/koron.59.772
• ISSN: 18815685
• ISSN: 03862186
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可