The presentation will highlight our recent research on the self-assembly of ditopic ligands with ion pairs into molecular architectures with predetermined structures. Using structure-based design methods, we identified organic ligands that are programmed to coordinate ion pairs and form high-symmetry charge neutral ensembles. This approach led to a new class of triple-stranded ion-pair helicates self-assembled from NiSO4 or FeSO4 and ditopic ligands comprising 2,2'-bipyridine (bpy) and o-phenylene-(bis)urea (pbu) cation- and anion-binding sites, respectively. The presentation will focus on the structures and dynamics of the helicates, the ion-pair coordination selectivity, and on strategies to design more complex architectures based on ion-pair coordination.This research was sponsored by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U. S. Department of Energy. Part of this study was conducted at the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy.

Self-assembled architectures via ion-pair coordination

248th National Meeting (2014)

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