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Photodynamic chiral molecular switches with thermal stability: from reflection wavelength tuning to handedness inversion of self-organized helical superstructures.
|Title||Photodynamic chiral molecular switches with thermal stability: from reflection wavelength tuning to handedness inversion of self-organized helical superstructures.|
|Publication Type||Journal Article|
|Year of Publication||2013|
|Authors||Li Y, Xue C, Wang M, Urbas A, Li Q|
|Journal||Angewandte Chemie (International ed. in English)|
|Date Published||2013 Dec 16|
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.
|Alternate Journal||Angew. Chem. Int. Ed. Engl.|