Determination of association features, configuration and number of ring members in anhydro sugar alcohols and their partially deuterated derivatives by means of the infrared spectra

Abstract

The structure of new anhydro sugar alcohols can be determined without an interpretation of the bands below 1600 cm −1, and solely on a basis of the multiplicity of the CH stretching vibrational frequencies. In cases where spectra cannot be taken in solution, the features of the associations within the molecules can be clarified by means of IR spectra of partially deuterated derivatives, and the assignation of the stretching vibration bands of the hydroxyl groups becomes possible. The torsional vibrations of the OH groups hindered in their rotation are also identifiable in the spectra.