Regulating the Structures of Self-Assembled Mechanically Interlocked Moleculecular Constructs via Dianion Precursor Substituent Effects
作者:Xu-Lang Chen、Yun-Jia Shen、Chao Gao、Jian Yang、Xin Sun、Xin Zhang、Yu-Dong Yang、Gong-Ping Wei、Jun-Feng Xiang、Jonathan L. Sessler、Han-Yuan Gong
DOI:10.1021/jacs.9b13473
日期:2020.4.22
4-dimethylenebenzene (referred to as the Texas-sized molecular box; 14+) in the form of its tetrakis-PF6- salt in DMSO. Several of the tested substituents, including 2-OH, 2,5-di(OH), 2,5-di(NH2), 2,5-di(Me), 2,5-di(Cl), 2,5-di(Br), and 2,5-di(I), were found to promote pseudorotaxane formation in contrast to what was seen for the parent PTADA system. Other derivatives of PTADA, including those with
取代基效应在调节反应化学和超分子自组装过程中起着关键作用。使用取代的对苯二甲酸二价阴离子(对苯二甲酸二价阴离子;PTADAs),根据它们调节四阳离子大环环[2]的固有阴离子络合特征的能力,探索了改变取代基的类型、数量和位置的影响。 ](2,6-di(1H-imidazol-1-yl)pyridine)[2](1,4-二甲基苯(称为德克萨斯大小的分子盒;14+)以其四基-PF6-形式存在DMSO 中的盐。几种测试的取代基,包括 2-OH、2,5-di(OH)、2,5-di(NH2)、2,5-di(Me)、2,5-di(Cl) , 2,5-di(Br) 和 2,5-di(I) 被发现与母体 PTADA 系统相比促进了假轮烷的形成。PTADA 的其他衍生物,包括那些具有 2,3-二(OH), 2, 6-di(OH)、2,5-di(OMe)、2,3,5,6-tetra(Cl) 或 2,3,5,6-tetra(F)