Group IIB (12) Metal Alkyls: The Synthesis of Trifluorosilyl and Trifluoromethyl Alkyls of Cadmium and Zinc

摘要

Metal vapors of cadmium and zinc have been reacted with trifluorosilyl and trifluoromethyl radicals to produce several new metal alkyls. A low temperature radio frequency glow discharge or plasma of hexafluoroethane and hexafluorodisilane was used to generate the tridluoromethyl and trifluorosilyl radicals, respectively. The compounds bis(trifluoromethyl) zinc were isolated at low temperatures. All compounds were unstable at room temperature with the exception of bis(trifluorosilyl) cadmium which was marginally stable at 20 C. Addition of glyme (glyme=dimethoxyethane) to the cadmium compounds gave stable alkyl-cadmium-glyme complexes while the addition of pyridine to the zinc compounds yielded stable complexes. The synthesis and physical properties are reported.