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Periphery-Functionalized Porous Organic Cages

机译:外围功能多孔有机笼

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摘要

By synthesizing derivatives of a trans-1,2-diaminocyclohexane precursor, three new functionalized porous organic cages were prepared with different chemical functionalities on the cage periphery. The introduction of twelve methyl groups (CC16) resulted in frustration of the cage packing mode, which more than doubled the surface area compared to the parent cage, CC3. The analogous installation of twelve hydroxyl groups provided an imine cage (CC17) that combines permanent porosity with the potential for post-synthetic modification of the cage exterior. Finally, the incorporation of bulky dihydroethanoanthracene groups was found to direct self-assembly towards the formation of a larger [8+12] cage, rather than the expected [4+6], cage molecule (CC18). However, CC18 was found to be non-porous, most likely due to cage collapse upon desolvation.
机译:通过合成反式1,2-二氨基环己烷前体的衍生物,制备了三个新的官能化的多孔有机笼,它们在笼的外围具有不同的化学官能度。引入十二个甲基(CC16)会导致笼包装模式受挫,与母笼CC3相比,表面积增加了一倍以上。十二个羟基的类似安装提供了一个亚胺笼(CC17),该笼将永久孔隙率与笼外外部合成后改性的潜力相结合。最后,发现庞大的二氢乙基蒽蒽基团的引入将自组装导向形成更大的[8 + 12]笼状分子,而不是预期的[4 + 6]笼状分子(CC18)。但是,发现CC18是无孔的,很可能是由于去溶剂化后笼子塌陷造成的。

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