CHEMISTRY OF THE TRIFLUOROMETHYL GROUP: PART I. COMPLEX FORMATION BY PHOSPHINES CONTAINING THE TRIFLUOROMETHYL GROUP

Abstract

The formation of co-ordination compounds of (CH3)3P, (CH3)2PCF3, CH3P(CF3)2, and P(CF3)3, with boron trifluoride and platinum (II) chloride has been studied. The properties of the new compounds (CH3)2PCF3.BF3, [(CH3)2PCF3]2PtCl2, [CH3P(CF3)2]2PtCl2 are described, and it is hence concluded that the stabilities of the boron trifluoride compounds decrease in the order.[Formula: see text]while for the platinum (II) complexes the order of stability is[Formula: see text]These two orders are related to the electronegativity of the trifluoromethyl group and its influence on the bonding properties of the phosphorus atoms.