文摘
Ionic cocrystals of sodium chloride with carbohydrates were investigated from a synthetic as well as from a crystallographic point of view. The syntheses of sodium chloride cocrystals with three different carbohydrates were established and furthermore optimized on a multigram, semitechnical scale. The missing crystal structures of two ionic NaCl cocrystals with a monosaccharide or a disaccharide, e.g., d-(−)-ribose·NaCl and d-(+)-sucrose·NaCl·2H2O, respectively, were elucidated via X-ray diffraction methods using either single crystal diffraction or synchrotron powder X-ray diffraction data applying the Rietveld refinement method. In both structures, sodium chloride contact ion pair formation in the solid state is observed, which represents the only described cases for alkali chloride carbohydrate combinations crystallized from aqueous solutions.