부산대학교 도서관

The O–H stretching absorption (νO–H) spectra of some keto-alcohols have been examined. The νO–Hshift to the lower frequency due to the intramolecular O–H··· bonding can roughly be correlated to the geometry of the hydroxyl group relative to the n-electrons on the carbonyl oxygen. When the bonding is forbidden because of the conformational restriction, a weaker interaction between the hydroxyl group and the π-electrons on the carbonyl group is observable as the lower shift of the νO–Hby 10–30 cm−1as far as the conformation is favorable for the interaction.