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首页> 外文期刊>Chemistry: A European journal >Recognition of N-Alkyl and N-Aryl Acetamides by N-Alkyl Ammonium Resorcinarene Chlorides
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Recognition of N-Alkyl and N-Aryl Acetamides by N-Alkyl Ammonium Resorcinarene Chlorides

机译：N-烷基铵基间苯二甲酰氯对N-烷基和N-芳基乙酰胺的识别

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摘要

N-Alkyl ammonium resorcinarene chlorides are stabilized by an intricate array of intra- and intermolecular hydrogen bonds that leads to cavitand-like structures. Depending on the upper-rim substituents, self-inclusion was observed in solution and in the solid state. The self-inclusion can be disrupted at higher temperatures, whereas in the presence of small guests the self-included dimers spontaneously reorganize to 1:1 host-guest complexes. These host compounds show an interesting ability to bind a series of N-alkyl acetamide guests through intermolecular hydrogen bonds involving the carbonyl oxygen (CO) atoms and the amide (NH) groups of the guests, the chloride anions (Cl-) and ammonium (NH2+) cations of the hosts, and also through CH interactions between the hosts and guests. The self-included and host-guest complexes were studied by single-crystal X-ray diffraction, NMR titration, and mass spectrometry.
机译：N-烷基铵间苯二甲酰氯通过错列的分子内和分子间氢键稳定，从而形成空洞状结构。取决于上边缘取代基，在溶液和固态下观察到自包含。在较高的温度下，自我包容性可能会被破坏，而在有小客人的情况下，自我包含的二聚体会自发重组为1：1宿主-客体复合物。这些主体化合物显示出令人感兴趣的能力，可通过涉及客体的羰基氧（CO）原子和酰胺（NH）基团的分子间氢键，氯阴离子（Cl-）和铵（N-烷基乙酰胺客体）结合一系列N-烷基乙酰胺客体宿主的NH2 +）阳离子，以及通过宿主和来宾之间的CH相互作用。通过单晶X射线衍射，NMR滴定和质谱研究了自包含和主客体的配合物。

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