title: Stoichiometric self-assembly of isomeric, shape-persistent, supramacromolecular bowtie and butterfly structures.
abstract: Two novel macromolecular constitutional isomers have been self-assembled from previously unreported terpyridine ligands in a three-component system. The terpyridine ligands were synthesized in high yields via a key Suzuki coupling. Restrictions of the possible outcomes for self-assembly ultimately provided optimum conditions for isolation of either a molecular bowtie or its isomeric butterfly motif. These isomers have been characterized by ESI-MS, TWIM-MS, (1)H NMR, and (13)C NMR. Notably, these structural isomers have remarkably different drift times in ion mobility separation, corresponding to different sizes and shapes at high charge states.
authors.affiliation: Department of Chemistry, The University of Akron, Akron, Ohio 44325, USA.
authors.forename: Anthony
authors.initials: A
authors.lastname: Schultz
authors.forename: Xiaopeng
authors.initials: X
authors.lastname: Li
authors.forename: Balaka
authors.initials: B
authors.lastname: Barkakaty
authors.forename: Charles N
authors.initials: CN
authors.lastname: Moorefield
authors.forename: Chrys
authors.initials: C
authors.lastname: Wesdemiotis
authors.forename: George R
authors.initials: GR
authors.lastname: Newkome