Polymeric capsules and honeycomb aggregates formed by p-sulfonatocalix[6]arene with phenanthrolinium compounds

Two crystalline complexes were prepared by the inclusion complexation of p-sulfonatocalix [6]arene (C6AS) with 1,10-phenanthrolinium (Phen(+)) (1) and 6,7-dihydro-5H-[1,4]diazepino[1,2,3,4-lmn] [1,10]phenanthroline-4,8-diium (PPQ(2+)) (2). p-Sulfonatocalix [6]arene, in complex 1, maintains the conventional centrosymmetric "up-down" double partial cone conformation, whereas it assumes a novel unsymmetric up-down double partial cone conformation induced by PPQ(2+) guest in complex 2. Furthermore, p-sulfonatocalix [6]arene aggregates to the overall structure of multipillars in the presence of Phen+ guest and presents the honeycomb-type packing structure upon complexation with PPQ(2+).