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Issue 44, 2010
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Conformational control in a bipyridine linked π-conjugated oligomer: cation mediated helix unfolding and refolding

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Abstract

A chiral π-conjugated oligomer having alternate bipyridine and carbazole moieties connected through acetylinic bonds undergoes helical folding in chloroformacetonitrile (40/60, v/v) as evident by fluorescence and circular dichroism changes. In the presence of transition metal cations such as Zn2+ defolding of the helical conformation occurs. Upon decomplexation of the cation with EDTA, the helical conformation is regained.

Graphical abstract: Conformational control in a bipyridine linked π-conjugated oligomer: cation mediated helix unfolding and refolding

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Article information


Submitted
16 ágú. 2010
Accepted
06 sep. 2010
First published
07 okt. 2010

Chem. Commun., 2010,46, 8392-8394
Article type
Communication

Conformational control in a bipyridine linked π-conjugated oligomer: cation mediated helix unfolding and refolding

K. P. Divya, S. Sreejith, C. H. Suresh and A. Ajayaghosh, Chem. Commun., 2010, 46, 8392
DOI: 10.1039/C0CC03287E

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