Synthesis and structural studies of a rare bis(phosphine) (hydrido) (silyl) platinum(Ⅱ) complex containing a Si–Si single bond

• An unsymmetric disilane ligand (SiH3) (SiMeBut2).
• A rare and stable complex {(SiH2) (SiMeBut2)}(H)PtⅡ(dcpe).
• One of the very few examples of disilanylplatinum hydride complexes.

Treatment of the unsymmetric disilane (SiH3) (SiMeBut2) (1) containing one Si–Si single bond with Pt(dcpe) (PEt3)2 (dcpe = Cy2PCH2CH2PCy2) in the ratio of 1:1 leads to a stable disilanylplatinum hydride complex {(SiH2) (SiMeBut2)}(H)– PtⅡ(dcpe) (2), which is one of the very few examples of bis(phosphine) (hydrido) platinum(Ⅱ) complexes bearing silyl ligands with Si–Si single bonds structurally characterized by single crystal X-ray analysis and multinuclear NMR spectroscopic studies.

Treatment of the unsymmetric disilane (SiH3)(SiMeBut2) with Pt(dcpe)(PEt3)2 leads to a stable disilanylplatinum hydride complex {(SiH2)(SiMeBut2)}(H)PtⅡ(dcpe), which is one of the very few examples of bis(phosphine)(hydrido) platinum(Ⅱ) complexes bearing silyl ligands with Si–Si single bonds.Figure optionsDownload as PowerPoint slide