Crystal structure and Hirshfeld surface analysis of 2,4-di-amino-6-methyl-1,3,5-triazin-1-ium tri-chloro-acetate monohydrate.

Autor: Sangeetha R; Department of Chemistry, Governemnt Arts College (Autonomous), Karur 639 005, Tamil Nadu, India., Balasubramani K; Department of Chemistry, Governemnt Arts College (Autonomous), Karur 639 005, Tamil Nadu, India., Thanigaimani K; Department of Chemistry, Government Arts College, Thiruchirappalli 620 022, Tamil Nadu, India., Jose Kavitha S; Department of Chemistry, Mother Teresa Womens University, Kodaikanal 624 102, Tamil Nadu, India.
Jazyk: angličtina
Zdroj: Acta crystallographica. Section E, Crystallographic communications [Acta Crystallogr E Crystallogr Commun] 2018 Jun 12; Vol. 74 (Pt 7), pp. 944-948. Date of Electronic Publication: 2018 Jun 12 (Print Publication: 2018).
DOI: 10.1107/S2056989018008307
Abstrakt: The asymmetric unit of the title mol-ecular salt, C 4 H 8 N 5 + ·C 2 Cl 3 O 2 - ·H 2 O, coomprises a 2,4-di-amino-6-methyl-1,3,5-triazin-1-ium cation, a tri-chloro-acetate anion and a water mol-ecule of solvation. The protonated N atom of the cation forms a hydrogen bond with a carboxyl O atom of the anion, which also acts as a hydrogen-atom acceptor with the water mol-ecule. The cations form centrosymmetric dimeric units through R 2 2 (8) N-H⋯N bond pairs and are extended into zigzag chains along the c -axis direction, also through similar cyclic R 2 2 (8) dual N-H⋯N hydrogen-bonding inter-actions. The water mol-ecule acts as a dual acceptor forming N-H⋯O hydrogen bonds between the amine groups of the cations, forming cyclic R 2 3 (8) motifs. The second H atom of the water mol-ecule also acts as a donor in an O-H⋯O hydrogen bond with the second carboxyl O atom, linking the chains along the b -axis direction. These interactions give rise to an overall three-dimensional supra-molecular structure. A Hirshfeld surface analysis was employed in order to study the inter-molecular inter-actions.
Databáze: MEDLINE