Solvent effect on the kinetics of Beckmann rearrangement

The rate constants for the Beckmann rearrangement of cyclohexanone oxime p-toluenesulfonate in 11 solvents are satisfactorily described by a three-parameter linear correlation including polarizability, electrophilicity, and molar volume of the solvent. The first two factors favor the reaction, whereas increase of the solvent molar volume makes the reaction slower, presumably due to steric hindrances to solvation.     

Solvent effect on the kinetics of carbamoylation of alcohols

Solvent effect on the rate of the reaction of phenyl isocyanate with alcohols may be described by multiparameter linear equations. Correlation analysis of the effects of various factors showed that specific solvation inhibits the reaction and that increased solvent polarity favors the process.     

Generalization of data on chromatographic specific retention volumes of organic substances on ester phases using linear multiparameter equations

Specific retention volumes of different organic substances on polyester phases can be generalized by multiparameter equations that take into account the polarity, polarizability, evaporation enthalpy, and molar volume of these substances. The approach allows one to predict the retention volumes of unstudied compounds.     

Solvent Effect on the Rate of Dimerization of Cyclopentadiene

The rate of dimerization of cyclopentadiene and some other cycloaddition reactions is determined by electrophilic solvation of the substrate with some contribution of other solvation factors, primarily nonspecific solvation. The corresponding dependence is described by multiparameter equations.     

Extraction of carpathian menilite shales with organic solvents

Extraction of Carpathian menilite shales with 18 solvents at 20°C was examined.     

Correlation analysis of diffusion of organic solvents across synthetic low-polar polymeric membranes

The influence exerted by physicochemical characteristics of organic solvents on their diffusion across polymeric membranes can be quantitatively using linear multiparametric equations.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 10, 2004, pp. 1714–1718.Original Russian Text Copyright ¢ 2004 by Makitra, Pristanskii.     

Correlation of the enthalpies of hydration and solution of nonelectrolytes in water with their physicochemical characteristics

The enthalpies of hydration and solution of organic substances in water at infinite dilution cannot be quantitatively characterized using any single correlation parameter. A correlation analysis using linear multiparameter equations shows that these quantities are governed by the combined effect of the nonspecific and specific solvation and the molar volume.