Reactivity of Bis(silyl) Platinum(II) Complexes toward Isocyanides: Preparation and Structure of <i>cis</i>-[Pt(SiHPh₂)₂(CNR)(PR‘₃)] (R = <i>t</i>-Bu, cyclohexyl, <i>i</i>-Pr; R‘ = Me, Et)

Reactions of organic isocyanides CNR (R = t-Bu, cyclohexyl, i-Pr) with Pt(SiHPh2)2(PR‘3)2 (R‘ = Me, Et) gave four novel bis(silyl) platinum(II) complexes Pt(SiHPh2)2(CNR)(PR‘3) containing both phosphine and isocyanide ligands. X-ray crystallographic studies of the two complexes revealed a cis orientation of the diphenylsilyl ligands. Two different Pt−Si bond distances and J(Pt−H) values of the Si−H hydrogen signals strongly suggest a higher trans influence of the silyl ligand relative to the isocyanide.