Exceptional Molecular Hyperpolarizabilities in Twisted π‐Electron System Chromophores

Abstract

Nonlinear optics: Twisted π-electron system electrooptic (EO) chromophores with exceptional molecular hyperpolarizabilities (−488 000×10−48 esu at 1907 nm) were designed and synthesized. Crystallographic analysis reveals large twist angles and a highly charge-separated zwitterionic ground state. Experiments on poled host–guest polymers containing these chromophores show them to be promising candidates for EO applications. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2005/z501581_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.