Within the last several years, there was a so-called sub-matrix of UNIFAC parameters published for groups commonly found in refrigerants / not covered by what I'll call mainsteam UNIFAC. This sub-matrix included groups like CFCl, for example. I've been trying to find a source on line for this submatrix, with the surface, volume, and interaction parameters. Does anyone have this sub-matrix and would be willing to share it, or does anyone have a link to an open on-line publication of these data, please? Thanks in advance.