Synthesis and reactivity of mixed pentafluorophenylpalladium(I)-platinum(I) derivatives molecular structure of ClPt(μ-dppm) 2 Pd(C 6F 5)

Abstract

XPt(μ-dppm) 2 Pd(C 6F 5) (X  Cl (I), Br (II), C 6F 5 (III) have been prepared by treating PdX(C 6F 5)(η 1-dppm) 2 with Pt(COD) 2 or Pt(PPh 3) 4. Substitution reactions of I yield neutral (SCN) or cationic (PPh 3, py) derivatives. The species R 2N +, SO 2 or RCCR (R  COOMe) insert into the PdPt bond of I to give A-frame Pd II-Pt II complexes, but reaction with SnCl 2 gives the SnCl 3 − derivative. The reactions of X-Pt(μ-dppm) 2Pd(C 6F 5) (X  Cl (I), C 6F 5 (III)) with isonitriles RNC (R  p-Tol, Cy, t-Bu) has been studied; the nature of the products obtained depends on the starting material, the isonitrile, and the reaction conditions. The molecular structure of ClPt(μ-dppm) 2Pd(C 6F 5) has been established by a single crystal X-ray study.