Controlled Supramolecular Oligomerization of C3-Symmetrical Molecules in Water: The Impact of Hydrophobic Shielding
作者:Pol Besenius、Kelly P. van den Hout、Harald M. H. G. Albers、Tom F. A. de Greef、Luuk L. C. Olijve、Thomas M. Hermans、Bas F. M. de Waal、Paul H. H. Bomans、Nico A. J. M. Sommerdijk、Giuseppe Portale、Anja R. A. Palmans、Marcel H. P. van Genderen、Jef A. J. M. Vekemans、E. W. Meijer
DOI:10.1002/chem.201002976
日期:2011.4.26
The supramolecular oligomerization of three water‐soluble C3‐symmetrical discotic molecules is reported. The compounds all possess benzene‐1,3,5‐tricarboxamide cores and peripheral GdIII–DTPA (diethylene triamine pentaacetic acid) moieties, but differ in their linker units and thus in their propensity to undergo secondary interactions in H2O. The self‐assembly behavior of these molecules was studied
报道了三个水溶性C 3对称盘状分子的超分子低聚。这些化合物均具有苯-1,3,5-三甲酰胺核心和外围的Gd III -DTPA(二亚乙基三胺五乙酸)部分,但它们的连接单元不同,因此它们在H 2中经历二次相互作用的倾向也不同。O.使用圆二色性,UV / Vis光谱,核磁共振和低温透射电子显微镜在溶液中研究了这些分子的自组装行为。这些分子的聚集浓度取决于次级相互作用的数量以及聚合部分的疏溶剂性。疏水作用屏蔽圆盘核心中的氢键基序对于产生稳定的螺旋状聚集体至关重要,聚集体设计成通过反作用,静电,排斥相互作用来限制其大小。