oxy}benzoyl)oxy]‐phenyl‐4‐[(4‐[(1S)‐1‐methylheptyl]oxy}benzoyl)oxy] benzoate (BC7S), were synthesized to demonstrate control of the helicity of their self‐assembled hierarchical superstructures. Mirror‐imaged CD spectra showed a split‐type Cotton effect after the formation of self‐assembled aggregates of BC7R and BC7S, thereby suggesting the formation of intermolecular exciton couplets with opposite
在此,两个不对称的手性弯曲核分子3-[[(4-[[4-(庚氧基)苯甲酰基]氧基}苯甲酰基)氧基]-苯基-4-[[4-[[[((1 R)-1-甲基庚基] ] oxy}苯甲酰]氧基]
苯甲酸酯(BC7R)和3-[(4-[[4-(庚氧基)苯甲酰基] oxy}苯甲酰]氧基]
苯甲酸] -4-[[4-[[(1 S)-1-甲基庚基]氧基}苯甲酰基)氧基]
苯甲酸酯(BC7S)被合成以证明控制其自组装的分级超结构的螺旋度。镜像CD光谱显示BC7R和BC7S自组装聚集体形成后的分裂型棉花效应,从而表明形成了具有相反光学活性的分子间激子对。在聚集体中发现了具有优先螺旋性的扭曲带和螺旋带,这与分子间激子对的扭曲特性相对应。螺旋带的形成归因于扭曲带的合并,通过增加宽度来改善形态稳定性。因此,