Selective gas adsorption by calixarene-based porous octahedral M32 coordination cages

Giant octahedral M-32 coordination cages were prepared via self-assembly of sulfonylcalix[4]arene-supported tetranuclear M(ii) clusters (M = Co, Ni) with hybrid linker based on tris(dipyrrinato)cobalt(iii) complexes appended with peripherical carboxylic groups. Due to intrinsic and extrinsic porosity, the obtained solid-state supramolecular architectures demonstrated good performance as adsorbents for the separation of industrially important gases mixtures.

Automated summary

Giant octahedral M-32 coordination cages were synthesized through self-assembly using sulfonylcalix[4]arene-supported tetranuclear M(ii) clusters (M = Co, Ni) and hybrid linker based on tris(dipyrrinato)cobalt(iii) complexes appended with peripherical carboxylic groups. These solid-state supramolecular architectures demonstrated excellent performance as adsorbents for the separation of industrially important gas mixtures due to their intrinsic and extrinsic porosity.