Abstract
Two new coordination supercontainers have been successfully isolated from the self-assembly reactions of the container precursor p-phenylsulfonylcalix [4]arene, Ni(II) or Co(II) ion, and diphenylmethane-4,4'-dicarboxylic acid. Crystal structure analysis revealed that these two coordination supercontainers possess a similar endo cavity and two deeper exo cavities compared to the related supercontainers based on p-tert-butylsulfonylcalix [4]arene. Gas and vapor adsorption studies indicated that the new compounds are permanently porous and show much better CO2/O2 and CO2/N2 selectivity and higher vapor adsorption than the tert-butyl analogues.
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