Published

Chimie

All-Optical Orientation of Photoisomerizable Octupolar Zinc(II) Complexes in Polymer Films

Published on - Journal of the American Chemical Society

Authors: Lydie Viau, Sébastien Bidault, Olivier Maury, Sophie Brasselet, Isabelle Ledoux, Joseph Zyss, Eléna Ishow, Keitaro Nakatani, Hubert Le Bozec

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A new type of 4,4‘-bis(styryl)-2,2‘-bipyridine functionalized by a dialkylamino-azobenzene group has been prepared. This ligand has allowed the preparation of photoisomerizable octupolar tris(bipyridyl)zinc(II) complexes and the corresponding star-shaped polymer by atom transfer radical polymerization (ATRP) of methyl methacrylate (MMA). The photoisomerization properties of such new metallo-chromophores have been studied. The macroscopic molecular orientation of the corresponding doped and grafted NLO-polymer films is reported for the first time.