Lina Maria Asprilla-Herrera , Simone Techert , Jose de Jesus Velazquez-Garcia
{"title":"Synthesis and structure of tris(2-methyl-1H-imidazol-3-ium) 5-carboxybenzene-1,3-dicarboxylate 3,5-dicarboxybenzoate","authors":"Lina Maria Asprilla-Herrera , Simone Techert , Jose de Jesus Velazquez-Garcia","doi":"10.1107/S2056989025002063","DOIUrl":null,"url":null,"abstract":"<div><div>The structure of a tris(2-methyl-1<em>H</em>-imidazol-3-ium) dihydrogenetrimesate<sup>−</sup> monohydrogentrimesate<sup>2−</sup> compound was determined by single-crystal X-ray diffraction. The compound is mixture of protonated and deprotonated molecules.</div></div><div><div>The structure of the title salt, 3C<sub>4</sub>H<sub>7</sub>N<sub>2</sub><sup>+</sup>·C<sub>9</sub>H<sub>5</sub>O<sub>6</sub><sup>−</sup>·C<sub>9</sub>H<sub>4</sub>O<sub>6</sub><sup>2−</sup>, <strong>1</strong>, 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 <strong>1</strong> and the previously reported 2-methyl-1<em>H</em>-imidazol-3-ium 3,5-dicarboxybenzoate structure [Baletska <em>et a</em>l. (2023). <em>Acta Cryst.</em> E<strong>79</strong>, 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 <em>ab</em> plane. The packing interactions are primarily driven by π–π interactions and hydrogen bonding between anions.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"81 4","pages":"Pages 303-309"},"PeriodicalIF":0.5000,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Crystallographica Section E: Crystallographic Communications","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/org/science/article/pii/S2056989025000623","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CRYSTALLOGRAPHY","Score":null,"Total":0}
引用次数: 0
Abstract
The structure of a tris(2-methyl-1H-imidazol-3-ium) dihydrogenetrimesate− monohydrogentrimesate2− compound was determined by single-crystal X-ray diffraction. The compound is mixture of protonated and deprotonated molecules.
The structure of the title salt, 3C4H7N2+·C9H5O6−·C9H4O62−, 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.
期刊介绍:
Acta Crystallographica Section E: Crystallographic Communications is the IUCr''s open-access structural communications journal. It provides a fast, simple and easily accessible publication mechanism for crystal structure determinations of inorganic, metal-organic and organic compounds. The electronic submission, validation, refereeing and publication facilities of the journal ensure rapid and high-quality publication of fully validated structures. The primary article category is Research Communications; these are peer-reviewed articles describing one or more structure determinations with appropriate discussion of the science.