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首页> 外文期刊>Crystal growth & design >Ethyne-Linked Push-Pull Chromophores: Implications of Crystal Structure and Molecular Electronics on the Quadric Nonlinear Activity
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Ethyne-Linked Push-Pull Chromophores: Implications of Crystal Structure and Molecular Electronics on the Quadric Nonlinear Activity

机译：Ethyne连接的推拉式发色团：晶体结构和分子电子对二次非线性活性的影响

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摘要

Three ethyne-linked push-pull materials consisting of a dimethylaniline donor and acceptors of increasing electron-withdrawing strength were prepared as nonlinear optical chromophores. Despite a high similarity of the molecular structures, all three materials featured unrelated non-centrosymmetric crystallization behavior. One of the compounds exhibits a remarkable packing with Z' = 16 molecules in the asymmetric unit forming two interpenetrating subsystems. Inspection of the nonlinear optical activity of single crystalline powders revealed an extraordinarily efficient second harmonic generation of one of the materials with a 1200-fold increased second harmonic response compared to potassium dihydrogen phosphate. The second harmonic generation efficiency of the materials under investigation has been related to both the intrinsic molecular properties as well as the alignment of the individual chromophores within the crystal packing, highlighting the importance of a multidisciplinary approach to understand the properties of nonlinear optical materials.
机译：制备由二甲基苯胺供体和增加的吸电子强度的受体组成的三种乙基链接的推拉材料被制备为非线性光学色影。尽管分子结构的高度相似，但所有三种材料都具有不相关的非亚聚对称结晶行为。其中一种化合物在不对称单元中表现出具有Z'= 16分子的显着填充，形成两个互穿的子系统。检测单晶粉末的非线性光学活性显示出与磷酸二氢钾相比，具有1200倍的二次谐波响应的一种材料的非高效二次谐波产生。正在研究的材料的第二次谐波产生效率与内在分子特性以及单独发色团内的晶体包装内的对准，突出了多学科方法理解非线性光学材料的性能的重要性。

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  • 来源
    《Crystal growth & design》 |2017年第8期|共13页
  • 作者

    Kautny Paul; Kriegner Helene; Bader Dorian; Dusek Michal; Reider Georg A.; Froehlich Johannes; Stoeger Berthold;

  • 作者单位

    TU Wien Inst Appl Synthet Chem Getreidemarkt 9-163 A-1060 Vienna Austria;

    TU Wien Inst Appl Synthet Chem Getreidemarkt 9-163 A-1060 Vienna Austria;

    TU Wien Inst Appl Synthet Chem Getreidemarkt 9-163 A-1060 Vienna Austria;

    Czech Acad Sci Inst Phys Na Slovance 2 Prague 18221 8 Czech Republic;

    TU Wien Photon Inst Gusshausstr 27-29 A-1040 Vienna Austria;

    TU Wien Inst Appl Synthet Chem Getreidemarkt 9-163 A-1060 Vienna Austria;

    TU Wien Xray Ctr Getreidemarkt 9 A-1060 Vienna Austria;

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  • 正文语种 eng
  • 中图分类 晶体学;
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