The experimental vapour-liquid equilibria, VLE, excess molar Gibbs energies, G(m)(E), and excess molar enthalpies, H-m(E), determined previously for the systems N,N-dimethylformamide, or N,N-dimethylacetamide, or 1-methyl-2-pyrrolidone + 1-chlorobutane, or +1-chlorohexane, or +1-chlorcoctane, or +1,2-dichloroethane, or +1,4-dichlorobutane, or +1,6-dichlorohexane, are examined using the DISQUAC group contribution model. The dispersive and quasi-chemical interchange parameters for the contacts chloro-amide in the mixtures with N,N-dialkylamide or 1-methyl-2-pyrrolidone with chloro- or alpha,omega-dichloroalkane were calculated. The model reproduces quite well the experimental data. (C) 2009 Elsevier B.V. All rights reserved.