Work

Synthesis and structure of tris(2-methyl-1H-imidazol-3-ium) 5-carboxybenzene-1,3-dicarboxylate 3,5-dicarboxybenzoate

Year: 2025

Type: article

Abstract: The structure of the title salt, 3C4H7N2 +·C9H5O6 −·C9H4O6 2−, 1, consists of three 2-methyl-imidazolium cations and both a single and a doubly deprotonated form of trimesic acid as anions. A detailed analysis of the bond lengths and angles reveals both differences and similarities between compound 1 and the previously reported 2-methyl-1H-imidazol-3-ium 3,5-dicarboxybenzoate structure [Baletska et al. (2023). Acta Cryst. E79, 1088–109], as well as the neutral counterpart of the ions. Examination of the crystal packing shows the formation of infinite chains by the anions, which, along with the cations, form zigzag planes parallel to the ab plane. The packing interactions are primarily driven by π–π interactions and hydrogen bonding between anions.

Source: Acta Crystallographica Section E Crystallographic Communications

DOI: 10.1107/s2056989025002063

Authors: Lina Maria Asprilla-Herrera, Simone Techert, Jose de Jesus Velazquez-Garcia

Institutions: Universidad del Valle, Deutsches Elektronen-Synchrotron DESY, University of Göttingen

Language: English

Topic: Crystal structures of chemical compounds

Subfield: Inorganic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $500

Funder: Deutsches Elektronen-Synchrotron