title: Crystal structure of 1H-imidazol-3-ium 2-(1,3-dioxoisoindolin-2-yl)acetate.
abstract: The title salt, C3H5N2 (+)·C10H6NO4 (-), was obtained during a study of the co-crystallization of N'-[bis-(1H-imidazol-1-yl)methyl-ene]isonicotinohydrazide with (1,3-dioxoisoindolin-2-yl)acetic acid under aqueous conditions. The 1,3-dioxoisoindolinyl ring system of the anion is essentially planar [maximum deviation = 0.023 (2) Å]. In the crystal, cations and anions are linked via classical N-H⋯O hydrogen bonds and weak C-H⋯O hydrogen bonds, forming a three-dimensional network. Weak C-H⋯π inter-actions and π-π stacking inter-actions [centroid-centroid distances = 3.4728 (13) and 3.7339 (13) Å] also occur in the crystal.
authors.affiliation: Chemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD, England ; Chemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt.
authors.forename: Shaaban K
authors.initials: SK
authors.lastname: Mohamed
authors.affiliation: Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey.
authors.forename: Mehmet
authors.initials: M
authors.lastname: Akkurt
authors.affiliation: Analytical Development Division, Manchester Metropolitan University, Manchester M1 5GD, England.
authors.forename: Herman
authors.initials: H
authors.lastname: Potgieter
authors.affiliation: Chemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD, England.
authors.forename: Muizz
authors.initials: M
authors.lastname: Ali
keywords: 1H-imidazol-3-ium salt; 2-(1,3-dioxoisoindolin-2-yl)acetate salt; co-crystallization; crystal structure; hydrogen bonding; pharmaceuticals; π–π stacking inter­actions