首页> 外文期刊>Chemistry: A European journal >Controlled Nanodimensional Supramolecular Self-Assembly of Tetra-Alkylated Naphthalene Diimide Derivatives
【24h】

Controlled Nanodimensional Supramolecular Self-Assembly of Tetra-Alkylated Naphthalene Diimide Derivatives

机译:四烷基化萘二酰亚胺衍生物的可控纳米超分子自组装

获取原文
获取原文并翻译 | 示例
           

摘要

Construction of thermodynamically stable nanostructures on the nano-to millimeter scales through noncovalent bonding plays an important role in material science. The self-assembly of tetra-alkylamino core-substituted naphthalene diimides (cNDIs) with variable alkyl chains (C_8H_(17), C_(12)H_(25), and C_(16)H_(33)) added on to the core leads to the formation of a variety of controlled morphologies and well-defined nanostructures. Such structures include nanorods, vesicular, belts, twisted ribbons, and donutlike morphologies (formed in CHCl_3/MeOH and CHCl_3/hexane mixtures) generated through solvophobic control. UV/Vis absorption and fluorescence spectroscopy demonstrate molecular aggregation in solution. Furthermore, SEM was employed to visualize the supramolecular self-assembled nanostructures. The growth of these structures is mainly due to packing of hydrophobic alkyl chains and π-π stacking of the cNDI core. The present study paves the way to rational and controlled designs of nanostructures made of optically active dyes (naphthalene diimide); this may open a new avenue towards tuning nanodimensional morphology.
机译:通过非共价键在纳米到毫米尺度上构建热力学稳定的纳米结构在材料科学中起着重要作用。具有可变烷基链(C_8H_(17),C_(12)H_(25)和C_(16)H_(33))的四烷基氨基核取代的萘二酰亚胺(cNDI)的自组装导致形成各种受控的形态和定义明确的纳米结构。这样的结构包括通过疏溶剂控制产生的纳米棒,囊泡,带,扭曲的带和类似甜甜圈的形态(在CHCl_3 / MeOH和CHCl_3 /己烷混合物中形成)。 UV / Vis吸收和荧光光谱显示溶液中的分子聚集。此外,SEM被用来可视化超分子自组装纳米结构。这些结构的增长主要归因于疏水性烷基链的堆积和cNDI核的π-π堆积。本研究为光学活性染料(萘二酰亚胺)制成的纳米结构的合理控制设计铺平了道路。这可能会为调整纳米形貌开辟新途径。

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