Abstract
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 (PPQ2+) (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 PPQ2+ 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 PPQ2+.
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