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Updated: Sep 16, 2025

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
Crystal structure of tris-(2-methyl-1H-imidazol-3-ium) benzene-1,3,5-tri-carboxyl-ate
Weronika Łukaszczyk1, Allegra Lohse2, Julia Leibing3
1Faculty of Chemistry Jagiellonian University in Kraków Gronostajowa 2 30-387 Kraków Poland.
Abstract:
The structure of the title salt, 3C4H7N2 +·C9H3O6 3- (1), is reported. The compound is formed with three 2-methyl-imidazolium cations and a fully deprotonated trimesic acid. The structure is disordered over two orientations, which were refined using a split model (90.99: 9.01occupancy ratio). Analysis of bond distances and angles reveals the differences and similarities between compound 1 and the previously published 2-methyl-1H-imidazol-3-ium 3,5-di-carb-oxy-benzoate structure [Baletska et al., (2023 ▸). Acta Cryst. E79, 1088-1092] and tris-(2-methyl-1H- imidazol-3-ium) 5-carb-oxy-benzene-1,3-di-carboxyl-ate 3,5-di-carb-oxy-benzoate [Asprilla-Herrera et al. (2025 ▸). Acta Cryst. E81, 303-309], as well as the neutral counterparts of the ions [Tothadi et al. (2020 ▸). ACS Appl. Mater. Inter-faces, 12, 15588-15594; Hachuła et al. (2010 ▸). J. Chem. Crystallogr. 40, 201-206]. The crystal packing analysis reveals the formation of hydrogen-bonded two-dimensional networks perpendicular to the [111] vector, where neighbouring planes inter-act via extensive π-π stacking.
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