申请人:NORTHWESTERN UNIVERSITY
公开号:US20130122297A1
公开(公告)日:2013-05-16
Disclosed herein is a way to produce a series of discrete sized slender, rigid oligoparaxylene molecules ranging from 1-5 nm in length. Molecules, based on 1-7, 9-11 paraxylene rings, have been synthesized as part of a homologous series of oligoparaxylenes (OPXs) with a view to providing a molecular tool box for the construction of nano architectures—such as spheres, cages, capsules, metal-organic frameworks (MOFs), metal-organic polyhedrons (MOPs) and covalent-organic frameworks (COFs), to name but a few—of well-defined sizes and shapes. Twisting between the planes of contiguous paraxylene rings is generated by the steric hindrance associated with the methyl groups and leads to the existence of soluble molecular gauge blocks without the need—at least in the case of the lower homologues—to introduce long aliphatic side chains onto the phenylene rings in the molecules.
本公开涉及一种生产一系列离散尺寸细长、刚性寡聚对二甲苯分子的方法,其长度范围为1-5纳米。基于1-7、9-11对二甲苯环的分子已经合成,作为寡聚对二甲苯(OPXs)同系列的一部分,旨在提供一个分子工具箱,用于构建纳米结构,例如球体、笼子、胶囊、金属有机框架(MOFs)、金属有机多面体(MOPs)和共价有机框架(COFs)等,以明确定义的尺寸和形状。相邻对二甲苯环之间的平面扭曲是由于与甲基基团相关的立体位阻所产生的,导致可溶性分子测量块的存在,而不需要在分子中引入长脂肪侧链,至少在较低同系物的情况下。