Second-Order NLO Switches from Molecules to Polymer Films Based on Photochromic Cyclometalated Platinum(II) Complexes
作者:Julien Boixel、Véronique Guerchais、Hubert Le Bozec、Denis Jacquemin、Anissa Amar、Abdou Boucekkine、Alessia Colombo、Claudia Dragonetti、Daniele Marinotto、Dominique Roberto、Stefania Righetto、Roberta De Angelis
DOI:10.1021/ja4131615
日期:2014.4.9
by DFT and TD-DFT calculations. These novel Pt(II) complexes were nanoorganized in polymer films which were poled, affording new materials characterized by a good second-order NLO response that can be easily switched, with an excellent NLO contrast. To the best of our knowledge, our compounds allowed designing the very first examples of switchable NLO polymer films based on metal complexes.
新型光致变色二噻吩乙烯基铂 (II) 配合物 (C^N^N)Pt(C≡C-DTE-C6H4-D) ((C^N^N) = 4,4'-di(n-hexyl)-制备并表征了 6-苯基-2,2'-联吡啶;D = H,NMe2)。由于在合适的电磁辐射下形成了扩展的 π 共轭配体,它们优异的光致变色特性允许在溶液中光致转换其二阶非线性光学特性,如通过 EFISH 技术测量的那样。通过 DFT 和 TD-DFT 计算,可以深入了解配合物的电子结构及其激发态的性质。这些新型 Pt(II) 复合物在极化的聚合物薄膜中进行纳米组织,提供了具有良好的二阶 NLO 响应的新材料,可以轻松切换,具有出色的 NLO 对比度。据我们所知,