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首页> 外文期刊>Crystal growth & design >Solvent-Modulated Formation of “Pac-man” and Capsular Host? Guest Bilayers from a Dicationic Ionic Liquid and C?Butylpyrogallol[4]arene
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Solvent-Modulated Formation of “Pac-man” and Capsular Host? Guest Bilayers from a Dicationic Ionic Liquid and C?Butylpyrogallol[4]arene

机译：溶剂调制的“吃豆人”和胶囊宿主的形成？来自阳离子阳离子液体和C？Butylpyrogallolol [4]芳烃的客体双层

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摘要

The pyrogallol[4]arenes have been shown to act as versatile host macrocycles for a wide variety of guest molecules, including the imidazolium-based cations of ionic liquids. This report demonstrates the use of alkyl-linked geminal dications in the design of bilayers comprising dimeric host?guest complexes. The pivotal role of solvent choice in controlling the resultant solid-state structure is particularly highlighted. The synthesis and single-crystal X-ray diffraction structures of two dimeric host?guest cocrystals generated by the use of different solvents while employing identical host and guest species are presented to illustrate this point. In one solvent, a “Pac-man”-type dimeric host?guest complex is assembled into bilayer galleries. With a switch to an alternate crystallization solvent, a bilayer-type structure in which each layer is composed of alternating complexes of a capsule and two “offset dimers” is instead constructed.
机译：邻苯三酚[4]芳烃已被证明可作为多种客体分子的通用宿主大环，包括离子液体的咪唑基阳离子。该报告证明了在设计包含二聚体-客体-客体复合物的双层膜中使用烷基连接的双键指示剂。特别强调了溶剂选择在控制所得固态结构中的关键作用。提出了两种二聚体主客体共晶体的合成和单晶X射线衍射结构，这些晶体是通过使用不同的溶剂同时使用相同的主体和客体物种生成的，以说明这一点。在一种溶剂中，“吃豆人”型二聚体主-客体复合物组装成双层画廊。改用另一种结晶溶剂，改为构造一种双层型结构，其中每层由胶囊和两个“偏移二聚体”的交替复合物组成。

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