Hierarchical Self-Assembly of a Bow-Shaped Molecule Bearing Self-Complementary Hydrogen Bonding Sites into Extended Supramolecular Assemblies
作者:Masato Ikeda、Tadahito Nobori、Marc Schmutz、Jean-Marie Lehn
DOI:10.1002/chem.200400826
日期:2005.1.7
and (1)H NMR spectra, fluorescence spectra, and electron microscopy data. The temperature dependence of the UV-visible spectra indicates a highly cooperative process for the self-assembly of compound 1 in decaline. The electron micrograph of the decaline solution of compound 1 (1.0 mM) revealed supramolecular sheet aggregates forming an entangled network. The selected area electronic diffraction patterns
带有自互补DAAD-ADDA(D =供体A =受体)氢键阵列的弓形分子1在烃溶剂中产生高度有序的超分子片状聚集体,其随后通过缠结网络的形成而产生凝胶。通过紫外可见光和(1)H NMR光谱,荧光光谱和电子显微镜数据的浓度和温度依赖性研究了化合物1的分层自组装过程。紫外可见光谱的温度依赖性表明,十氢化萘中化合物1的自组装具有高度协作的过程。化合物1十氢化萘溶液的电子显微照片(1.0 mM)显示超分子片状聚集体形成缠结网络。超分子片状聚集体的选定区域电子衍射图样对于单晶是典型的,表明高度有序的组装。结果举例说明了通过层级自组装产生的高度组织化的超分子材料,在每个组织水平上均表现出新颖的集体特性。