首页> 外文期刊>RSC Advances >A liquid-crystalline perylene tetracarboxylic bisimide derivative bearing trisiloxan-2-yl moieties: influence on mesomorphic properties and electron transport
【24h】

A liquid-crystalline perylene tetracarboxylic bisimide derivative bearing trisiloxan-2-yl moieties: influence on mesomorphic properties and electron transport

机译:含有三氟硅氧烷-2-基部分的液晶吹水四羧酸双酰胺衍生物:对间晶特性和电子传输的影响

获取原文
           

摘要

Mesomorphic and electron transport properties are compared for liquid-crystalline (LC) perylene tetracarboxylic bisimide (PTCBI) derivatives bearing linear disiloxane and trisiloxane chains, as well as bis(trimethylsiloxanyl)methylsilyl(trisiloxan-2-yl) groups. In contrast to alkyl-substituted analogues, the PTCBI derivative bearing bulky trisiloxan-2-yl moieties exhibits a more ordered columnar phase and higher electron mobility compared to that bearing linear trisiloxane chains. In spite of the bulkiness, the trisiloxan-2-yl moieties do not inhibit closed π–π stacking within the columnar aggregates. Therefore the electron mobility in the ordered columnar phase of the compound bearing the branched trisiloxan-2-yl moieties was 0.05 cm ~(2) V ~(?1) s ~(?1) at room temperature and it exceeded 0.1 cm ~(2) V ~(?1) s ~(?1) at 120 °C.
机译:将中间形和电子传输性与含有线性二氧硅氧烷和三硅氧烷链的液晶(LC)丙二烷基苄基哒酰胺(PTCBI)衍生物进行比较,以及双(三甲基硅氧烷基)甲基甲硅烷基(三硅氧烷-2-基)组。与烷基取代的类似物相比,与轴承线性三硅氧烷链相比,PTCBI衍生物轴承粗糙的三硅氧烷-2-基2-Y1部分表现出更有序的柱状相和更高的电子迁移率。尽管散布性,三硅氧烷-2-基部分不抑制柱状聚集体内的闭合π-π堆叠。因此,在室温下,载有支链三硅氧烷-2-基部的化合物的有序柱状相的电子迁移率为0.05cm〜(2)V〜(α1),其超过0.1cm〜( 2)120°C的V〜(α1)S〜(α1)。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号