TRANSITION-METAL TRIFLUOROMETHYL COMPLEXES - NEW TRIFLUOROMETHYL COMPLEXES OF GOLD WITH FLUOROPHOSPHANE LIGANDS

New complexes of the type F(2)RPAuCF(3) (R = (t)Bu, NEt(2), NMe(2), Ph , Cp, F) (I-VI) have been prepared in good yield and characterized ful ly. Gold(I)chloride reacts with the corresponding fluorphosphine in an organic solvent leading to the chloro-fluorophosphine compounds F(2)R PAuCl (R = (t)Bu, NEt(2), NMe(2), Ph, Cp, F) (VII-XII). These react in a second step with Cd(CF3)(2) yielding the corresponding trifluormeth yl-fluorphosphine complexes (I-VI). Following this route trifluormethy l(trifluorophosphine)gold(I), F3PAuCF3 (VI), was prepared. Although it is thermally unstable this compound was successfully characterized by mass spectrometry. The compositions and structures of the other compl exes were determined by elemental analyses, IR, AAS (VII-XI), H-1-, F- 19- and P-31-NMR spectroscopies and mass spectometry (I-XI).