Breaking Parallel Orientation of Rods via a Dendritic Architecture toward Diverse Supramolecular Structures
作者:Ruimeng Zhang、Xueyan Feng、Rui Zhang、Wenpeng Shan、Zebin Su、Jialin Mao、Chrys Wesdemiotis、Jiahao Huang、Xiao‐Yun Yan、Tong Liu、Tao Li、Mingjun Huang、Zhiwei Lin、An‐Chang Shi、Stephen Z. D. Cheng
DOI:10.1002/anie.201904749
日期:2019.8.19
Self‐assembled nanostructures of rod‐like molecules are commonly limited to nematic or layered smectic structures dominated by the parallel arrangement of the rod‐like components. Distinct self‐assembly behavior of four categories of dendritic rods constructed by placing a tri(hydroxy) group at the apex of dendritic oligo‐fluorenes is observed. Designed hydrogen bonding and dendritic architecture break
棒状分子的自组装纳米结构通常限于向列或层状近晶结构,这些结构以棒状组分的平行排列为主。观察到通过将三(羟基)基团置于树枝状低聚芴的顶端而构建的四类树枝状棒的不同自组装行为。设计的氢键和树枝状结构破坏了棒的平行排列,导致分子具有特定的(扇形或圆锥形)形状。尽管扇形分子倾向于形成六方堆积的圆柱相,但锥形分子却可以形成球形基序以堆积成各种有序结构,包括Frank-Kasper A15相和十二边形准晶体。