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Updated: Aug 19, 2026

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
Hydrogen-bonding patterns in 2-amino-4,6-dimethylpyrimidinium hydrogen sulfate
Madhukar Hemamalini1, Packianathan Thomas Muthiah, Urszula Rychlewska
1Department of Chemistry, Bharathidasan University, Tiruchirappalli 620 024, India.
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.
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