Dichotomous Reactivity of Halodisilanes in Oxidative Addition with Pt(PEt3)3. Formation of Bis(silyl)- or (Disilanyl)platinum Complexes

Abstract
The Si-Si bond in XSiMe2SiMe2Y (X, Y = F, F; Cl, Cl; Cl, Me; Br, Me) was readily cleaved with Pt(PEt3)3 to give cis-(XMe2Si)(YMe2Si)Pt(PEt3)2 complexes. On the other hand, ISiMe2SiMe3 selectively underwent oxidative addition at the Si–I bond to result in the formation of trans-(Me3SiMe2Si)PtI(PEt3)2.