title: Hydrogen-bonding patterns in 2-amino-4,6-dimethylpyrimidinium hydrogen sulfate.
abstract: In the title compound, C6H10N3+.HSO4-, the asymmetric unit consists of a hydrogen sulfate anion and a 2-amino-4,6-dimethylpyrimidinium cation. The hydrogen sulfate anions self-assemble through O-H...O hydrogen bonds, forming supramolecular chains along the b axis, while the organic cations form base pairs via N-H...N hydrogen bonds. The aminopyrimidinium cations join to the sulfate anions via a pair of hydrogen bonds donated from the pyrimidinium protonation site and from the exo amine group cis to the protonated site.
authors.affiliation: Department of Chemistry, Bharathidasan University, Tiruchirappalli 620 024, India.
authors.forename: Madhukar
authors.initials: M
authors.lastname: Hemamalini
authors.forename: Packianathan Thomas
authors.initials: PT
authors.lastname: Muthiah
authors.forename: Urszula
authors.initials: U
authors.lastname: Rychlewska
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Plutecka
mesh_terms: D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D015394:Molecular Structure; D011743:Pyrimidines / Q000737:chemistry*; D013431:Sulfates / Q000737:chemistry*
chemical_list: C464526:2-amino-4,6-dimethyl pyrimidine; D011743:Pyrimidines; D013431:Sulfates