Efficient fluorinating agent through topochemical fluorination of Co-Fe layered double hydroxides.

Mixed-metal inorganic fluoride, Co0.60Fe0.40F3, solid solutions are obtained through topochemical reactions of Co2FeCl(OH)6·2H2O LDH with molecular fluorine, F2, at temperatures as low as 100 °C. This solid solution possesses interesting F(•)-releasing ability, and its efficiency as a solid-state fluorinating agent is demonstrated on a commercial polyethylene film. (19)F solid state NMR and contact angle measurements underline the efficient fluorination of this polymer.