Anhydrous ionic co-crystals of cyanuric acid with LiCl and NaCl

Abstract

Anhydrous ionic co-crystals (ICCs) of cyanuric acid (CA) with sodium and lithium chlorides have been prepared by solid state methods and structurally characterized from X-ray powder diffraction data (XRPD). Complete encapsulation of the Li⁺Cl⁻ ion pair by the organic molecules is observed in CA·LiCl, while the solid-state solvation of piles of Na⁺ cations in CA·NaCl results in the markedly increased dissolution rate (ca. 5 times) and solubility (ca. 20 times) in water with respect to pure CA.