Nanosized chiral octahedral M₃₂ coordination cages were prepared via self-assembly of sulfonylcalix[4]arene tetranuclear M(II) clusters (M = Co or Ni) with enantiomerically enriched linkers based on tris(dipyrrinato)cobalt(III) complexes, appended with peripheral carboxylic groups. Two pairs of enantiomers of cages were obtained and unambiguously characterized from a structural point of view, using single crystal X-ray diffraction. Chiral-HPLC was used to evidence the enantiomers. In the solid state, the compounds present intrinsic and extrinsic porosity: the intrinsic porosity is linked with the size of the cages, which present an inner diameter of ca. 19 Å. The obtained solid-state supramolecular architectures demonstrated good performances as adsorbents for water and 2-butanol guest molecules.

中文翻译：

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基于八面体噻卡利沙芳烃的多孔配位笼中的面控手性诱导


纳米手性八面体 M₃₂ 配位笼是通过磺酰卡利克斯[4]芳烃四核 M（II） 簇（M = Co 或 Ni）制备的，该接头具有基于三（二吡咯基）钴 （III） 配合物的对映体富集接头，并附有外周羧基。获得了两对笼的对映异构体，并使用单晶 X 射线衍射从结构角度进行了明确的表征。手性 HPLC 用于证明对映异构体。在固态下，化合物表现出内禀和外禀孔隙率：内禀孔隙率与笼的尺寸有关，笼的内径约为 19 Å。获得的固态超分子结构表现出作为水和 2-丁醇客体分子吸附剂的良好性能。