Photodynamic Chiral Molecular Switches with Thermal Stability: From Reflection Wavelength Tuning to Handedness Inversion of Self‐Organized Helical Superstructures1. Issue 51 (22nd October 2013)

• Record Type: Journal Article
• Authors: Li, Yannian; Xue, Chenming; Wang, Mengfei; Urbas, Augustine; Li, Quan
• Is Part Of: Angewandte Chemie international edition. Volume 52:Issue 51(2013)
• Page Start: 13703
• Page End: 13707
• Publication Date: 2013-10-22
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201306396
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="graphical" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>A good turn</bold>: Three compounds that bear two axially chiral bridged binaphthyl units were developed as photodynamic chiral dopants for nematic liquid crystals. For compounds with suitable bridge lengths, a change in the dihedral angle induced a switch of the binaphthyl units from the <italic>cisoid</italic> to the <italic>transoid</italic> form upon UV irradiation, which led to an inversion of the handedness of the helices.<boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgg4t3jdpjv" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>