Reversible transformation between rings and coils in a dynamic hydrogen-bonded self-assembly

Yagai, Shiki ; Kubota, Shun ; Saito, Hikaru ; Unoike, Kanako ; Karatsu, Takashi ; Kitamura, Akihide ; Ajayaghosh, Ayyappanpillai ; Kanesato, Masatoshi ; Kikkawa, Yoshihiro (2009) Reversible transformation between rings and coils in a dynamic hydrogen-bonded self-assembly Journal of the American Chemical Society, 131 (15). pp. 5408-5410. ISSN 0002-7863

Full text not available from this repository.

Official URL: http://pubs.acs.org/doi/abs/10.1021/ja9005892

Related URL: http://dx.doi.org/10.1021/ja9005892

Abstract

Several proteins, such as tobacco mosaic virus coat protein and the β protein of the bacteriophage λ, 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 π-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.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
ID Code:370
Deposited On:21 Sep 2010 04:44
Last Modified:31 Dec 2010 04:19

Repository Staff Only: item control page