A new three dimensional proton transfer compound including citric acid and 2,4,6-triamine-1,3,5-triazine: synthesis, characterization and X-ray crystal structure

Abstract
A new three dimensional proton transfer compound, (tataH)2(citH).2H2O (I) was synthesized from the reaction of citric acid (citH3), and 2,4,6-triamino-1,3,5-triazine (tata). The characterization was performed using elemental analysis, IR spectroscopy, and single crystal X-ray structure determination. The crystal structure of the title compound consists of bis-2,4,6-triamino-1,3,5-triazin-1-ium cations, hydrogen citrate, and lattice water molecules. Intermolecular O-H•••O, N-H•••O, and N-H•••N hydrogen bonding interactions stabilize the crystal structure. The hydrogen bonds distances range from of 1.781 to 2.088 Å. The π-π stacking (centroid-centroid ranges 3.410-3.504 Å) between two aromatic rings of tata moieties can play an essential role in the creation and stabilization of the title crystalline network.

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