Journal
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
Volume 74, Issue -, Pages 944-+Publisher
INT UNION CRYSTALLOGRAPHY
DOI: 10.1107/S2056989018008307
Keywords
crystal structure; triazinium cation; trichloroacetate anion; three-dimensional hydrogen-bonded supramolecular framework; Hirshfeld surface analysis
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Funding
- Department of Science and Technology (DST-SERB), New Delhi, India [SB/ FT/CS-058/2013]
- Department of Science and Technology (DST), New Delhi, India of an INSPIRE fellowship (INSPIRE) [IF131050]
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The asymmetric unit of the title molecular salt, C4H8N5 center dot+C2Cl3O2 center dot-H2O, coomprises a 2,4-diamino-6-methyl-1,3,5-triazin-1-ium cation, a trichloroacetate anion and a water molecule 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 molecule. The cations form centrosymmetric dimeric units through R-2(2) (8) N-H center dot center dot center dot 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 center dot center dot center dot N hydrogen-bonding interactions. The water molecule acts as a dual acceptor forming N-H center dot center dot center dot O hydrogen bonds between the amine groups of the cations, forming cyclic R-2(3) (8) motifs. The second H atom of the water molecule also acts as a donor in an O-H center dot center dot center dot 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 supramolecular structure. A Hirshfeld surface analysis was employed in order to study the intermolecular interactions.
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