Advanced Materials

Cover image for Vol. 27 Issue 37

24_48b/2012Chiroptical Spherulites: Circularly Polarized Blue Luminescent Spherulites Consisting of Hierarchically Assembled Ionic Conjugated Polymers with a Helically π-Stacked Structure (Adv. Mater. 48/2012)

On p. 6451 Kazuo Akagi and co-workers demonstrate that cationic π-conjugated polymers form an interchain helically π-stacked assembly with anionic chiral compounds that is stabilized by both electrostatic and π–π interactions. The assembly hierarchically self-organizes into a spherulite with a circularly polarized blue luminescence. The back cover shows the characteristic optical image, “Maltese Cross pattern” with extinction rings, and the hierarchical structures for the spherulite.

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