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Varying the interplay of calix[5] arenes through chloromethane inclusion

机译:通过加入氯甲烷改变杯[5]芳烃的相互作用

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摘要

Three inclusion complexes of calix[5] arenes as dichloromethane (DCM) or chloroform solvates have been structurally authenticated, namely, the complexes of p-Bu-t-calix[5] arene, 1, or p-H-calix[5] arene, with DCM, 2, and a new polymorph of the complex of p-phenyl-calix[5] arene with chloroform, 3. Complex 1 has two adjacent tbutyl groups of one calixarene embracing the analogous groups from another calixarene. Complex 2 has a slipped head-to-head arrangement of calixarenes with a DCM molecule in the cavity of each calixarene. In complex 3, the calixarenes form dimers through interdigitation, and these dimers are assembled with back-to-back arrangement of calixarenes from adjacent dimers. All solvate complexes were crystallized in the presence of p-carborane, which has complementarity of size of the cavity of the calixarenes yet is not incorporated in the structures.
机译:杯[5]芳烃的三种夹杂物,如二氯甲烷(DCM)或氯仿溶剂化物已得到结构鉴定,即p-Bu-t-calix [5]芳烃1或pH-calix [5]芳烃的络合物,与DCM 2和一个新的对苯基-杯杯[5]芳烃与氯仿配合物的多晶型物3。配合物1具有一个相邻杯的两个叔丁基,其中一个杯芳烃包含另一个杯芳烃的类似基团。络合物2具有杯芳烃的滑动的头对头排列,在每个杯芳烃的腔中具有DCM分子。在复合物3中,杯芳烃通过相互交叉形成二聚体,并且这些二聚体与相邻二聚体的杯芳烃的背对背排列组装在一起。所有的溶剂化物配合物在对-碳硼烷的存在下结晶,对-碳硼烷具有杯芳烃腔的大小的互补性,但是没有结合到结构中。

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