Photodynamic chiral molecular switches with thermal stability: from reflection wavelength tuning to handedness inversion of self-organized helical superstructures.

TitlePhotodynamic chiral molecular switches with thermal stability: from reflection wavelength tuning to handedness inversion of self-organized helical superstructures.
Publication TypeJournal Article
Year of Publication2013
AuthorsLi Y, Xue C, Wang M, Urbas A, Li Q
JournalAngewandte Chemie (International ed. in English)
Volume52
Issue51
Pagination13703-7
Date Published2013 Dec 16
Abstract

A good turn: 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 cisoid to the transoid form upon UV irradiation, which led to an inversion of the handedness of the helices.

DOI10.1155/2013/431232
Alternate JournalAngew. Chem. Int. Ed. Engl.