A study has been made of the kinetics of adsorption-desorption of hydrocarbons by complexes and solvatocomplexes [tert-C4H9OB(OR)(3)]Li, [tert-C4H9OAl(OR)(3)]Li, [tert-C4H9OB(OR)(3)]Li . nROH (R = C4H9, C7H15, C10H21; n = 0, 1.8) a function of their structure. The kinetic and thermodynamic parameters of thermal desorption of hydrocarbons from complexes have been determined.