QSPR Molecular Approach for Estimating Henry’s Law Constants of Pure Compounds in Water at Ambient Conditions
Farhad Gharagheizi, Poorandokht Ilani‐Kashkouli, Seyyed Alireza Mirkhani, Nasrin Farahani, Amir H. Mohammadi · Industrial & Engineering Chemistry Research · 2012
In this article, we present a comprehensive quantitative structure–property relationship (QSPR) to estimate the Henry’s law constant ( H ) of pure compounds in water at ambient conditions. This relationship is a multilinear equation containing eight chemical-structure-based parameters. The parameters were selected by the genetic algorithm multivariate linear regression (GA-MLR) method using more than 3000 molecular descriptors. The squared correlation coefficient of the model ( R 2 ) over 1954 pure compounds is equal to 0.983 (logarithmic-based data). Therefore, the model is comprehensive and accurate enough to be used to predict the Henry’s law constants of various compounds in water.