Revised linear solvation energy relationship coefficients for the 77-phase McReynolds data set based on an updated set of solute descriptors

Linear solvation energy relationship (LSER) coefficients for the 77-phase McReynolds data set have been recalculated using updated solute descriptors in the revised solvation equation:log SP=c1+r1R2+s1πH2+a1∑αH2+b1∑βH2+l1 log L16These revised LSER coefficients are presented and classified by cluster analysis into groupings of stationary phases which have comparable solubility properties. It was found that the groupings were similar to those proposed by Abraham using the original solvation equation and that any dissimilarities were readily explainable by the grouping methods that were applied. Comparison of the original coefficients with the revised set also shows that several stationary phases which had a statistically insignificant b1 value with the original equation now have significant b1 values when utilizing the revised solvation equation.