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首页> 外文期刊>Advanced Functional Materials >Parallel Polar Dimers in the Columnar Self-Assembly of Umbrella-Shaped Subphthalocyanine Mesogens
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Parallel Polar Dimers in the Columnar Self-Assembly of Umbrella-Shaped Subphthalocyanine Mesogens

机译：柱状亚酞菁蛋白质聚糖的柱状自组装中的平行极性二聚体

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摘要

The self-assembly of umbrella-shaped mesogens is explored with subphthalocyanine cores and oligo(thienyl) arms with different lengths in the light of their application as light-harvesting and photoconducting materials. While the shortest arm derivatives self-assemble in a conventional columnar phase with a single mesogen as a repeating unit, the more extended derivatives generate dimers that pile up into liquid crystalline columns. In contrast to the antiparallel arrangement known from single crystals, the present mesogens align as parallel dimers in polar columnar phases as confirmed by X-ray scattering, experimental densities, dielectric spectroscopy, second harmonic generation, alignment, and conductivity studies. UV-vis and fluorescence spectroscopies reveal a broad absorption in the visible range and only weak emission of the Q-band. Thus, these light-collecting molecules forming strongly polar columnar mesophases are attractive for application in the area of photoconductive materials.
机译：用亚酞菁芯和寡核苷酸芯和寡核苷酸（Thienyl）臂鉴于其应用作为光收集和光导材料，鉴于具有不同长度的脱酞菁芯和寡核苷酸（Thienyl）臂。虽然最短的臂衍生物在以常规的柱状相自组装为具有单个脱蛋白作为重复单元，但更扩展的衍生物产生堆积成液晶柱的二聚体。与从单晶中已知的反平行布置相反，本发明的脱色作为通过X射线散射，实验密度，介电光谱，二次谐波产生，对准和导电性研究证实的极性柱状阶段的平行二聚体。 UV-VIS和荧光光谱揭示了可见范围内的宽吸收，并且仅弱发射Q波段。因此，形成强极性柱状柱的这些聚光分子对于在光电导材料区域中的应用是具有吸引力的。

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