Supra-molecular inter-actions in 2,6-di-amino-4-chloro-pyrimidin-1-ium 5-chloro-salicylate and bis-(2,6-di-amino-4-chloro-pyrimidin-1-ium) naphthalene-1,5-di-sulfonate.

ABSTRACT: The crystals of two new salts, 2,6-di-amino-4-chloro-pyrimidin-1-ium 5-chloro-salicylate, C₄H₆ClN₄⁺·C₇H₄ClO₃^-, (I), and bis-(2,6-di-amino-4-chloro-pyrimidin-1-ium) naphthalene-1,5-di-sulfonate, 2C₄H₆ClN₄⁺·C₁₀H₆O₆S₂^2-, (II), have been synthesized and characterized by single-crystal X-ray diffraction. In both compounds, the N atom of the pyrimidine group in between the amino substituents is protonated and the pyrimidinium cation forms a pair of N-H⋯O hydrogen bonds with the carboxyl-ate/sulfonate ion, leading to a robust R₂²(8) motif (supra-molecular heterosynthon). In compound (

SUBMITTER: Swinton Darious R 

PROVIDER: S-EPMC5956345 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature