Synthesis, structural characterization, and reactivity of a bis (phosphine)(silyl) platinum(II) complex

Treatment of 1,2-C6H4(SiMe2H)(SiH3) (1) with Pt(dcpe)(PEt3)(2) (dcpe = Cy2PCH2CH2PCy2) in dry toluene at room temperature in the ratio of 1 : 1 leads to {1,2-C6H4(SiMe2)(SiH2)} PtII(dcpe) (2), which can react with sterically unhindered alcohol to form a dimethoxy substituted silyl platinum(II) compound (3). There are only five examples of bis(silyl) platinum(II) complexes prepared from this silyl ligand with such structural features registered in the Cambridge Structural Database. The structures of 2 and 3 were unambiguously determined by single-crystal X-ray analysis and multinuclear NMR spectroscopic studies.