Predicting the Structure of Supramolecular Dendrimers via the Analysis of Libraries of AB<sub>3</sub> and Constitutional Isomeric AB<sub>2</sub> Biphenylpropyl Ether Self-Assembling Dendrons
作者:Brad M. Rosen、Daniela A. Wilson、Christopher J. Wilson、Mihai Peterca、Betty C. Won、Chenghong Huang、Linda R. Lipski、Xiangbing Zeng、Goran Ungar、Paul A. Heiney、Virgil Percec
DOI:10.1021/ja907882n
日期:2009.12.2
large hollow spheres that is dictated by the primary structure of the dendron. The comparative analysis of libraries of biphenylpropyl ether dendrons with the previously reported libraries of benzyl-, phenylpropyl-, and biphenyl-4-methyl ether dendrons demonstrated biomimetic self-assembly wherein the primary structure of the dendron and to a lesser extent the structure of its repeat unit determines the
4'-hydroxy-4-biphenylpropionic, 3',4'-dihydroxy-4-biphenylpropionic, 3',5'-dihydroxy-4-biphenylpropionic, and 3',4',5'-trihydroxy-4-的合成联苯丙酸甲酯通过三种有效和模块化的策略,包括一种基于镍催化硼化和顺序交叉偶联的策略。这些构件被用于合成一个 3,4,5-三取代的文库和两个结构异构的 3,4-和 3,5-二取代联苯丙基醚树突的文库的收敛迭代方法。超分子树枝状大分子的结构和逆向结构分析表明,联苯丙基醚树枝状分子自组装和自组织成与先前报道的库中观察到的相同的周期性晶格和准周期性阵列,但具有更大的尺寸,不同的自组装机制,以及改善的溶解性、热稳定性、酸稳定性和氧化稳定性。自组装的不同机制导致发现了两种新的超分子结构。第一个代表具有四层重复的新香蕉状层状晶体。第二个是一个巨大的囊泡球体,由