N,N′-Bis(9-phenyl-9-thioxanthenyl)ethylenediamine: Highly Selective Host Behavior in the Presence of Xylene and Ethylbenzene Guest Mixtures,Crystal Growth & Design

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N,N′-Bis(9-phenyl-9-thioxanthenyl)ethylenediamine: Highly Selective Host Behavior in the Presence of Xylene and Ethylbenzene Guest Mixtures
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2017-11-13 00:00:00 , DOI: 10.1021/acs.cgd.7b01284
Benita Barton ₁ , Mino R. Caira ₂ , Lize de Jager ₁ , Eric C. Hosten ₁

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Host compound N,N′-bis(9-phenyl-9-thioxanthenyl)ethylenediamine formed 1:1 host:guest complexes with o- and p-xylene, and ethylbenzene, when recrystallized from them. The meta-isomer was not included. Competition experiments using equimolar binary and ternary mixtures of the three xylenes demonstrated that this host is markedly selective for p-xylene (≥94% on both a milligram- and gram-scale), while 68% of this guest was extracted from an equimolar quaternary mixture of the three xylenes and ethylbenzene. This selectivity was also evident when guest ratios in binary mixtures containing p-xylene were varied. The observed high affinity for the para-isomer was explained using single crystal X-ray diffraction, Hirshfeld surface analysis and thermoanalytical experiments. Furthermore, the host was subjected to gas phase guests in order to establish whether the ability existed for complexation of these guests from the solid state.

中文翻译：

N，N'-双（9-苯基-9-噻吨基）乙二胺：在二甲苯和乙苯客体混合物存在下的高选择性主体行为

主体化合物Ñ，Ñ ' -双（9-苯基-9-噻吨）乙二胺形成1：1的主机：客体复合物与ö -和p当它们从二甲苯中重结晶，和乙苯。该元异构体是不包括在内。使用三种二甲苯的等摩尔二元和三元混合物进行的竞争实验表明，该宿主对对二甲苯具有明显的选择性（毫克级和克级均≥94％），而该客体的68％是从等摩尔四元季铵盐中提取的。三种二甲苯和乙苯的混合物。当改变含有对二甲苯的二元混合物中的客体比率时，这种选择性也很明显。观察到对使用单晶X射线衍射，Hirshfeld表面分析和热分析实验解释了对位异构体。此外，使主体经受气相客体以建立是否存在使这些客体从固态络合的能力。

更新日期：2017-11-14

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