Reversible Transformation between Rings and Coils in a Dynamic Hydrogen-Bonded Self-Assembly

被引：83

作者：

Yagai, Shiki ^{[1
,2
]}

Kubota, Shun ^{[1
]}

Saito, Hikaru ^{[1
]}

Unoike, Kanako ^{[1
]}

Karatsu, Takashi ^{[1
]}

Kitamura, Akihide ^{[1
]}

Ajayaghosh, Ayyappanpillai ^{[3
]}

Kanesato, Masatoshi ^{[4
]}

Kikkawa, Yoshihiro ^{[4
]}

机构：

[1] Chiba Univ, Dept Appl Chem & Biotechnol, Grad Sch Engn, Inage Ku, Chiba 2638522, Japan

[2] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama 3320012, Japan

[3] CSIR, NIIST, Chem Sci & Technol Div, Photosci & Photon Grp, Trivandrum 695019, Kerala, India

[4] Natl Inst Adv Ind Sci & Technol, Photon Res Inst, Tsukuba, Ibaraki 3058562, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2009年 / 131卷 / 15期

基金：

日本学术振兴会;

关键词：

SUPRAMOLECULAR POLYMERIZATION; MOLECULAR DUMBBELLS; TRIBLOCK COPOLYMER; ORGANOGELS; MORPHOLOGY; NANOSTRUCTURES; ARCHITECTURES; ORGANIZATION; POLYMORPHS; NANORINGS;

D O I：

10.1021/ja9005892

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Several proteins, such as tobacco mosaic virus coat protein and the B protein of the bacteriophage A, are known to exhibit unique dynamic self-organization processes involving ring-shaped and extended helical nanostructures triggered by chemical stimuli. However, transformation of rings into coils as observed in biological assemblies has never been realized with synthetic molecular building blocks. Oligo(p-phenylenevinylene) functionalized on one end with barbituric acid and on the other end with aliphatic tails self-organizes in aliphatic solvents to form nanorings through hydrogen-bonding and pi-stacking interactions. Upon an increase in concentration, the nanorings transform into rodlike nanostructures, which are considered to be formed through helically coiled objects consisting of quasi-one-dimensional fibers.

引用

页码：5408 / +

页数：5

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