Abstract In the present work, thermochemical parameters for platinum fluorides: PtF2, PtF4, PtF5PtF6 were calculated by quantum chemical Semi-Emprical (PM6), method and the results compared with (when available) experimental data from literature. Lattice energies are calculated by using Kapustinskii and the generalized Glasser-Jenkins equations. It was concluded that, in gaseous phase, all platinum fluorides are diamagnetic.