Phenanthrene[2]arene 1 with excellent adsorption capacity for benzene was synthesized in high yield. Activated crystals of 1 have been successfully used to separate PhH from equimolar mixture of PhH and Cy and the purity of the PhH can reach 98.4%.
A novel pyromellitic diimide-extended
pillar[6]arene was synthesized
in two steps with moderate yield for the first time. It showed a symmetrical
stretched hexagon structure and could form 1:2 complexes with polycyclic
aromatic hydrocarbons in solution. Interestingly, a linear supramolecular
array between complex 1@G4
2
and
pyrene through π···π stacking interactions
was also observed in the solid state.
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