Preparation of an unusual fluoroalkyl phosphinoyl chelate complex, {k3-P,C,P,k1-O-(CF3)2PCH2C6H3CH2P(CF3)O}2Pt2
摘要:
Electron poor cationic complexes [((PCP)-P-CF3)Pt(L)](+) (where L = CO, NC5F5, or acetone) react with H2O in polar solvents via selective hydrolysis of a single P-CF3 substituent to afford the spectroscopically- characterized phosphinoyl-bridged complex {k(3)-P,C,P,k(1)-O-(CF3)(2)PCH2C6H3CH2P(CF3)O}(2)Pt-2 (1) in good yield. X-ray diffraction confirms the presence of a six-member Pt-P-O-Pt-P-O ring in a chair conformation. The presumed intermediate aqua complex, ((PCP)-P-CF3)Pt(H2O)(+), is stable in dichloromethane, but when dissolved in more polar solvents readily converts to 1. (C) 2008 Elsevier B. V. All rights reserved.