The room temperature substitution of n- and iso-perfluoropropyl iodides and n-perfluorobutyl iodide to dimethylplatinum (II) 1,5-cyclooctadiene: The crystal structure of [Pt(C3F7)2(COD)]

The room temperature reaction of dimethylplatinum (II)COD [COD = 1,5-cyclooctadiene] with a molar excess perfluoro-n-propyl iodide produces [Pt(C3F7)2(COD)]. Perfluoro-iso-propyl iodide and perfluoro-n-butyl iodide gives the monosubstitute [Pt(i-C3F7)(CH3)(COD)] and [Pt(C4F9)(CH3)(COD)], respectively, consistent with steric hinderance suppressing the second substitution reaction. The crystal structure of [Pt(C3F7)2(COD)] reveals square planar geometry about the platinum.