title: Solid-state Porphyrin Interactions with Oppositely Charged Peripheral Groups.
abstract: The crystallization and the crystal and molecular structure of a very slightly soluble electrostatically interacting pair of porphyrins is described. The tetra-anion 5,10,15,20-tetrakis-(4-sulfonatophenyl)-21,23H-porphyrin [H2TPPSO3]4-and the tetra-cation 5,10,15,20-tetra(N-methylpyridyl)21H,23H-porphyrin [H2TMePyP]4+are found to form an alternating one-dimensional stack that is stabilised by electrostatic interactions between the porphyrin rings but also byπ-πinteractions between all substituted phenyl rings in the ensemble. The resulting interactions between the porphyrins is exceptionally tight.
authors.affiliation: Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA.
authors.forename: W Robert
authors.initials: WR
authors.lastname: Scheidt
authors.affiliation: Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA.
authors.forename: Beisong
authors.initials: B
authors.lastname: Cheng
authors.affiliation: Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA.
authors.forename: Allen G
authors.initials: AG
authors.lastname: Oliver
authors.affiliation: Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA; Department of Chemistry and Physics, Coastal Carolina University, Conway, SC 29528, USA.
authors.forename: John A
authors.initials: JA
authors.lastname: Goodwin