Using Two Simple Methods of ArArF Self‐Assembly and Isolation Chromophores to Further Improve the Comprehensive Performance of NLO Dendrimers1. Issue 2 (23rd November 2012)

• Record Type: Journal Article
• Authors: Wu, Wenbo; Yu, Gui; Liu, Yunqi; Ye, Cheng; Qin, Jingui; Li, Zhen
• Is Part Of: Chemistry. Volume 19:Issue 2(2013)
• Page Start: 630
• Page End: 641
• Publication Date: 2012-11-23
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201202992
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Herein, through a combination of divergent and convergent approaches, coupled with the utilization of the powerful Sharpless "click chemistry" reaction, two series of high‐generation nonlinear optical (NLO) dendrimers have been conveniently prepared in high purity and satisfactory yields. Perfluoroaromatic rings and isolation chromophores were introduced to further improve their comprehensive performance. Thanks to the effects of ArAr^F self‐assembly and the isolation chromophores, coupled with perfect 3D spatial isolation from the highly branched structure of the dendrimer, <bold>G5‐PFPh‐NS</bold> displayed very large NLO efficiency (up to 257 pm V⁻¹), which is, to the best of our knowledge, the new record highest value reported so far for simple azo chromophore moieties. High‐quality wide optical transparency and good stability were also achieved.</p> </abstract>