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首页> 外文期刊>Crystal growth & design >Isostructural Charge-Transfer Cocrystals Based on Triptycene End-Capped Quinoxalinophenanthrophenazine
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Isostructural Charge-Transfer Cocrystals Based on Triptycene End-Capped Quinoxalinophenanthrophenazine

机译:基于三萜端升喹喔啉卟啉卟啉苯噻吩的IsoStrontuctuctuction Concervertals

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摘要

Charge transfer (CT) crystals of an electron donor and an acceptor have electronic properties that are different from the two pure components. Despite the great potential of such CT crystals have for organic electronics, the control of the spatial arrangement of donor and acceptor molecules in the cocrystals plays a crucial role for the charge transfer itself or, for example, for charge transport. In most cases, by changing e.g. the acceptor components, various cocrystals are accessible but in almost all cases with different packing motifs and thus crystallographic parameters. This makes a direct and systematic comparison of different donor–acceptor pairs difficult or even impossible. On the basis of a triptycene end-capped dimethoxy-quinoxalinophenanthrophenazine (QPP-OMe ) as a donor with six small electron-deficient molecules as acceptors, an isostructural packing could be realized, where the QPP-OMe donor is forming voids with nearly the same orientation and size to enclathrate the acceptor molecules, as has been revealed by single-crystal X-ray diffraction. The CT complexes were studied spectroscopically, supported by density functional theory calculations.
机译:电子供体和受体的电荷转移(CT)晶体具有不同于两种纯组分的电子性质。尽管这种CT晶体在有机电子学方面具有巨大的潜力,但对共晶体中施主和受主分子空间排列的控制对电荷转移本身或例如电荷传输起着至关重要的作用。在大多数情况下,通过改变例如受体组分,可以获得各种共晶,但在几乎所有情况下,具有不同的填充基序,因此具有不同的晶体学参数。这使得直接和系统地比较不同的供体-受体对变得困难,甚至不可能。基于三联烯端封的二甲氧基喹恶啉苯并噻吩嗪(QPP-OMe)作为供体,六个小的缺电子分子作为受体,可以实现同构堆积,其中QPP-OMe供体形成具有几乎相同取向和大小的空穴以包封受体分子,这已由单晶X射线衍射揭示。在密度泛函理论计算的支持下,对CT配合物进行了光谱研究。

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  • 来源
    《Crystal growth & design》 |2021年第2期|共13页
  • 作者单位

    Organisch-Chemisches Institut Ruprecht-Karls-Universit?t Heidelberg Im Neuenheimer Feld 27;

    Institut für Physikalische Chemie Karlsruher Institute of Technology Kaiserstr. 1;

    Centre for Advanced Materials Ruprecht-Karls-Universit?t Heidelberg Im Neuenheimer Feld 22;

    Centre for Advanced Materials Ruprecht-Karls-Universit?t Heidelberg Im Neuenheimer Feld 22;

    Organisch-Chemisches Institut Ruprecht-Karls-Universit?t Heidelberg Im Neuenheimer Feld 27;

    Centre for Advanced Materials Ruprecht-Karls-Universit?t Heidelberg Im Neuenheimer Feld 22;

    Institut für Physikalische Chemie Karlsruher Institute of Technology Kaiserstr. 1;

    Organisch-Chemisches Institut Ruprecht-Karls-Universit?t Heidelberg Im Neuenheimer Feld 27;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 晶体学;
  • 关键词

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