Cover Picture: Single Crystals Popping Under UV Light: A Photosalient Effect Triggered by a [2+2] Cycloaddition Reaction (Angew. Chem. Int. Ed. 23/2014). Issue 23 (22nd April 2014)

• Record Type: Journal Article
• Authors: Medishetty, Raghavender; Husain, Ahmad; Bai, Zhaozhi; Runčevski, Tomče; Dinnebier, Robert E.; Naumov, Panče; Vittal, Jagadese J.
• Is Part Of: Angewandte Chemie international edition. Volume 53:Issue 23(2014)
• Page Start: 5713
• Page End: 5713
• Publication Date: 2014-04-22
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201403852
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="graphical" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <italic> <bold>The self‐propulsion of single crystals</bold> </italic> of three Zn(II) complexes under UV light is described by P. Naumov, J. J. Vittal et al. in their Communication on <ext-link ext-link-type="doi" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink">page 5907 ff.</ext-link> This visually impressive dynamic behavior is a consequence of the accumulation and sudden release of strain created by crystal expansion following the formation of 1D coordination polymers by a [2+2] cycloaddition reaction. Understanding this effect, which is mechanistically analogous to the bursting of popcorn in a hot pan, may help in the design of new light‐driven mechanical actuators.<boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pghf49ts0w" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>