Synthesis and X-ray structure of bis(trifluoromethyl)(N,N-diethyldithiocarbamato)-copper; a remarkably stable perfluoroalkylcopper(III) complex

The reaction between trifluoromethylcadmium reagent and Br2Cu(edtc)(edtc =N,N-diethyldithiocarbamato) or CdI+[(CF3)2Cu]– with [Et2NC(S)S]2 in DMF (dimethylformamide) at –30°C yields the stable CuIII perfluoroalkylcopper complex, (CF3)2CuSC(S)NEt2.