作者: Heather D. Clarke , Kapildev K. Arora , Heather Bass , Padmini Kavuru , Tien Teng Ong
DOI: 10.1021/CG901345U
关键词: Crystallography 、 Hydrate 、 Single crystal 、 Chemistry 、 Hydrogen bond 、 Cocrystal 、 Thermal stability 、 Crystal engineering 、 Thermogravimetric analysis 、 Crystal structure
摘要: This contribution addresses the role of water molecules in crystal engineering by studying structures and thermal stabilities 11 new cocrystal hydrates, all which were characterized single X-ray crystallography, powder diffraction (PXRD), infrared spectroscopy (IR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC). The hydrates can be grouped into four categories based upon stability: (1) is lost at 120 °C; (4) dehydration occurs concurrently with melt cocrystal. In order to address if there any correlation between structure stability, following factors considered: type hydrate (tunnel or isolated hydrate); number hydrogen bond donors acceptors; distances; packing efficiency. Category 1 exhibit tunnels. However, no structure/stability correlations exist o...