<i>trans</i>-9,10-Dihydro-9,10-ethanoanthracene-11,12-dicarboxylic Acid: Remarkable Host Selectivities in the Presence of Mixtures of Anisole and Bromoanisole Isomers
作者:Benita Barton、Mino R. Caira、Ulrich Senekal、Eric C. Hosten
DOI:10.1021/acs.cgd.2c01147
日期:2023.1.4
Furthermore, this striking host selectivity persisted even in binary solutions containing low concentrations of 4-BA (18–25%); near-complete selectivities in favor of 4-BA were observed here too. Single crystal X-ray diffraction analyses showed that the favored guest species, 4-BA, was the only one to experience short intermolecular contacts, through its phenyl ring, with the host molecule’s carbonyl oxygen
在这项工作中,反式-9,10-二氢-9,10-乙基蒽-11,12-二羧酸 ( DED),一种与苯甲醚 (ANI)、2-溴苯甲醚 (2-BA) 和 4-溴苯甲醚 (4-BA) 形成复合物的主体化合物被发现对 4-BA 具有显着的亲和力 (93.1–98.6%)当从含有该客体的任何混合物中重结晶时,这些二元(ANI/4-BA、2-BA/4-BA 或 3-BA/4-BA)、三元(ANI/2-BA/4-BA、 ANI/3-BA/4-BA, or 2-BA/3-BA/4-BA), or quaternary (ANI/2-BA/3-BA/4-BA) in nature. 此外,这种显着的宿主选择性甚至在含有低浓度 4-BA (18–25%) 的二元溶液中仍然存在;此处也观察到接近完全的有利于 4-BA 的选择性。单晶 X 射线衍射分析表明,受欢迎的客体物种 4-BA 是唯一通过其苯环经历短分子间接触