Supramolecular chemistry of shape-persistent arylene ethynylene macrocycles, including aggregation, host-guest chemistry, liquid crystal behavior and 2d, 3d supramolecular structures is reviewed in this article 摘要重点介绍具有纳米尺寸的苯炔刚性大环的超分子化学:包括聚集效应,主客体化学、液晶行为及二维、三维超分子结构等。
The enthalpy change on dsc curve suggests that the transition is one from low-ordered state to a higher-ordered state . a stacking mood that the 4-trifluoro-methyl-2, 3, 5, 6-tetrafluorophenylmserts in between two perylene-macrocycles is confirmed by theoretical quantum calculation, such an insertion effect leads to the inversion of ( 0, 0 ) and ( 0, 1 ) absorption features under low temperature and the dramatic decrease of exciton coupling, which contributes to the spectral similarity in solution and the solid state 量子化学的计算结果支持氟取代的苯环嵌入两个相邻的?环之间的分子堆砌方式,使得在常温到150左右f-ptcdi固体薄膜的紫外-可见吸收光谱的(0,0)和(0,1)性状的强度对比发生“反转”;氟取代苯环的嵌入大大降低激子耦合,使固体吸收光谱性状与溶液类似。