Hexa-peri-hexabenzocoronenes-Controlling their Self-Assembly by Engineering the Lateral Substituents
Hexa-peri-hexabenzocoronenes-Controlling their Self-Assembly by Engineering the Lateral Substituents
复制标题
六邻六苯并苯并通过设计横向取代基来控制其自组装
作者：
Olivier F. Aebischer;Bassam Alameddine;T. Jenny
缩聚芳烃（PAH），可被视为石墨的二维亚段，已开始吸引越来越多的超分子化学的兴趣。取代六-正-六苯并二苯并二苯所形成的结构对介质的任何变化以及HBC衍生物的侧向取代基非常敏感。制备了各种全氟烷基化HBC化合物，并通过粉末XRD、DSC、荧光和低温SEM进行了研究，以便对这类化合物的自组装行为进行一定的控制。
Polycondensed aromatic hydrocarbons (PAH), which can be regarded as two-dimensional subsections of graphite, have begun to attract increasing interest in supramolecular chemistry. Substituted hexa-peri-hexaben- zocoronenes (HBC), an outstanding class of PAH, are well-known to self-organize in solution into highly ordered columnar molecular stacks. The formed structures are very sensitive to any variation of the medium as well as the lateral substituents of the HBC derivatives. Various perfluoroalkylated HBC compounds have been prepared and investigated by powder XRD, DSC, fluorescence and cryo-SEM in order to gain certain control over the self- assembling behavior of this class of compounds.