在一封初步的信(四面体 Lett。2010, 51, 188 ) ,我们报导了二个新基于一种肺结核特效药的四倍的结合氢的主题,这是,二 monopodal (1a 和 1b ) 和五 dipodal (2a, 2b 和 3a3c ) 从在烃的 dipodal 主题的超分子的聚合物和泡的芳香的一种肺结核特效药衍生物,和形成。在这份报纸,我们在场有他们在水的媒介的自我装配的行为上的一个重音的这些结合氢的主题的性质上的一幅完整的图画。SEM, AFM, TEM 并且荧光灯显微图显示所有 dipodal 混合物也在极的甲醇和水甲醇(多达 50% 水) 形成泡混合物。控制实验证明 1b 不在一样的媒介形成泡。到 dipodal 混合物的溶液的 1b 的增加禁止后者形成泡的能力。在高集中, 3b 和 3c 另外 gelate 分离溶剂,包括的烃,酉旨,甲醇,和甲醇水混合。集中依赖者 SEM 调查表明 3b 和 3c 的泡熔化形成胶化和 3c 罐头 de 总数的胶化 reversibly 形成泡。
In a preliminary letter (Tetrahedron Lett. 2010, 51, 188), we reported two new hydrazide-based quadruple hydrogen-bonding motifs, this is, two monopodal (la and lb) and five dipodal (2a, 2b and 3a--3c) aromatic hydrazide derivatives, and the formation of supramolecular polymers and vesicles from the dipodal motifs in hydrocarbons. In this paper, we present a full picture on the properties of these hydrogen-bonding motifs with an emphasis on their self-assembling behaviors in aqueous media. SEM, AFM, TEM and fluorescent micrographs indicate that all the dipodal compounds also form vesicles in polar methanol and water-methanol (up to 50% of water) mixtures. Control experiments show that lb does not form vesicles in same media. Addition of lb to the solution of the dipodal compounds inhibits the latter's capacity of forming vesicles. At high concentrations, 3b and 3c also gelate discrete solvents, including hydrocarbons, esters, methanol, and methanol-water mixture. Concentration-dependent SEM investigations reveal that the vesicles of 3b and 3c fuse to form gels and the gel of 3c can de-aggregate to form the vesicles reversibly.