Crystal structures and thermotropic properties of alkyl α-d-glucopyranosides and their hydrates

摘要: Thermotropic properties and crystal structures of alkyl alpha-D-glucopyranosides their hydrates were estimated by X-ray, DSC thermogravimetric measurements (TGA). Monohydrates rapidly lose water several degrees below the melting point anhydrous glucopyranosides. The points monohydrates measured in pressure cells (chain length longer than seven) are lower, clearing higher those glucosides. Layer distances smectic crystalline phases compounds established. Melting points, densities layer glucopyranosides display strong even-odd effects. decrease these effects case can be elucidated results X-ray structure analysis.