Back Cover: The First Hexadithienylethene-Substituted Tris(bipyridine)metal Complexes as Quadratic NLO Photoswitches: Combined Experimental and DFT Studies (Chem. Eur. J. 19/2013)

• Published in: Chemistry : a European journal Vol. 19; no. 19; p. 6140
• Main Authors: Ordronneau, Lucie, Aubert, Vincent, Guerchais, Véronique, Boucekkine, Abdou, Le Bozec, Hubert, Singh, Anu, Ledoux, Isabelle, Jacquemin, Denis
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 03-05-2013; Wiley Subscription Services, Inc
• Subjects: Chemistry; coordination chemistry; density functional calulations; diarylethene; nonlinear optics; photochrome
• ISSN: 0947-6539; 1521-3765
• DOI: 10.1002/chem.201390068

Flip the NLO switch! A straightforward access to hexadithienylethene-based photochromes by using a coordination-chemistry approach through the combination of bis(dithienylethene)bipyridyl ligands and metal ions (M = Zn, Fe) is reported. The photostability of the isomeric forms of the iron(II) complexes allows the photoswitching of second-order nonlinear optical (NLO) responses (see figure), and the results are rationalized with the help of time-dependent density functional theory.