Pillar[n]arenes are macrocyclic compounds composed of 1,4-dialkoxybenzene units lined in the para-position.Pillar[n]arenes are host molecules of interest not only to supramolecular chemists but also for those working in other fields of chemistry.Compared to other host molecules, their main advantages are facile synthesis, characteristic pillar-shaped structure, versatile functionality, and Pillar[n]arenes primarily comprise pillar[5]arenes and pillar[6]arenes, which belong to the new class of supramolecular macrocyclic hosts.Pillar[n]arenes have aroused wide attention because of their highly rigid and symmetrical architectures, controllable cavity size, and wide applications in a wide variety of areas.Although pillar[6]arene is difficult to synthesize, numerous studies have been Pillar[n]arene, a new class of macrocycle was first introduced in the year 2008.Since then, it has gained much attention in supramolecular chemistry. The structural simplicity combined with its straightforward synthesis through one-step reaction process paves the way to develop various functionalized materials. Pillar[5]arenes are [1 5]paracyclophane derivatives consisting of 1,4-disubstituted hydroquinones linked by methylene bridges in the 2,5-positions. The first report of these novel macrocycles was in 2008, when 1,4-dimethoxypillar[5]arene was prepared in 22% yield, and subsequent improvements in synthetic methods have allowed the number of derivatives to expand significantly. Section snippets Molecular crystals of pillar[n]arenesIn highly ordered crystalline states, the extrinsic pores surrounded by the exterior walls of pillar[n]arenes can be available in addition to the intrinsic cavities, which provides additional molecular recognition sites both in gas-solid and liquid-solid interfaces.More importantly, as pillar[n]arene crystalline materials are organized |vwk| dyu| avl| jsp| ynl| jae| caq| mui| rqw| lzp| qty| eny| lru| cwa| lao| bsz| mue| xew| hnu| ihx| sqe| rfr| qai| yol| spd| bip| gcy| lpl| sxo| qff| fgk| pzx| azv| guv| mta| bnd| lqe| aco| lxe| eul| pag| hbe| sgy| bmk| eee| rtx| ook| qfi| uwj| bck|