The electron vibrational interaction (EVI) parameters such as Huang-Rhys factor, effective phonon energy and zero phonon line position were estimated using data from our recent reported work, on photoluminescence in rare earth doped complex hexafluorides phosphors LiMgBF6, Li2NaBF6 and Li3BF6 Validity of results were established by modeling the emission line which was found to be in good agreement with experimental photoluminescence spectra. (C) 2013 Elsevier B.V. All rights reserved.