[Formation of ionol complexes with free fatty acids]

UV spectrophotometry and high-resolution NMR spectrometry have demonstrated the formation of the complexes of ionol and fatty acids. This formation occurs as a result of the two types of interactions: 1/hydrogen bond formation between ionol OH-group and the carboxylic group of a fatty acid; 2/van der Waals interactions between the hydrogen chain of a fatty acid and tret -butyl groups of ionol. The latter interaction becomes more powerful with increase in fatty acid unsaturation. The molecular structure of the complexes of ionol with fatty acids is suggested.