title: A supramolecular ladder-like network from trimesic acid and pyrazine N,N'-dioxide.
abstract: In the title complex, benzene-1,3,5-tricarboxylic acid-pyrazine N,N'-dioxide (2/1), C9H6O6·0.5C4H4N2O2, cocrystallized trimesic acid (TMA) and pyrazine N,N'-dioxide (PNO) molecules form strong O-H...O hydrogen bonds, but also important weak C-H...O and dipole-dipole intermolecular interactions, to generate a densely packed three-dimensional network. PNO molecules lie on inversion centres where they connect pairs of TMA sheets into distinct two-dimensional hydrogen-bonded layers perpendicular to the crystallographic ab diagonal.
authors.affiliation: Department of Chemistry, University of Oslo, Post Box 1033, Blindern 0315, Norway.
authors.forename: Vitthal N
authors.initials: VN
authors.lastname: Yadav
authors.affiliation: Department of Chemistry, University of Oslo, Post Box 1033, Blindern 0315, Norway.
authors.forename: Carl Henrik
authors.initials: CH
authors.lastname: Görbitz
keywords: crystal structure; dipole–dipole intermolecular interactions; hydrogen bonding; pyrazine N,N′-dioxide; supramolecular ladder-like network; trimesic acid