CRYSTAL STRUCTURE OF γ-CYCLODEXTRIN AT ROOM TEMPERATURE

The crystal structure of γ-cyclodextrin 13.3 hydrate was determined by the X-ray method on the basis of the data measured at room temperature. The γ-cyclodextrin molecule is in a round shape, and is slightly distorted from the regular octagonal structure. The γ-cyclodextrin cavity includes 5.3 water molecules which occupy the 13 sites.