Infrared spectra of some O-methyl derivatives of glucose and xylose

Abstract

The IR spectra (3000-670 cm −1) of some O-methyl derivatives of glucose, xylose and related glycosides are reported for samples in dilute solution in inert solvents and as potassium chloride discs and hexachlorobutadiene mulls. Several bands in the C—H and C—O stretching regions of the spectra of samples in solution were found to be split in the spectra of the solid state samples. Bands in the C—H bending region and in the region below 900 cm −1 appeared to be little affected by the changes in environment. The implications of the results for the interpretation of solid state spectra of crystalline carbohydrates are discussed.