were constructed by entangled, high-aspect ratio flexible bundles of nanofibrils. UV-vis, CD, IR and XRD showed that the compound form chiral, elongated, columnar aggregates with nanofiber morphology by the combination of intermolecular hydrogen bonding between N-H and C=O of amide, π-π stacking (H-aggregate) and hydrophobic interaction of peripheral group.
设计,合成并充分表征了新颖的C3-对称苯-1,3,5-
三甲苯酰胺(
BTA),其装饰有三个相同的柱[5]
芳烃尾巴。已经显示该化合物在室温下超声处理时可以低浓度(0.2wt%)使
乙腈胶凝,但是通过常规的加热-冷却方法获得了沉淀。
SEM测量表明,凝胶和沉淀物都是由缠结的高纵横比的纳米纤维柔性束构成的。UV-vis,CD,IR和XRD结果表明,该化合物通过酰胺与NH和C = O之间的分子间氢键结合,π-π堆积(H-聚集)和疏
水性形成具有纳米纤维形态的手性,细长的柱状聚集体外围群体的互动。