Alternativ-Liganden, XXVII. Neue zweizähnige Phosphanliganden mit M'R2-Akzeptorzentren (M' = Si, Ge; R = Me, Ph)/Alternative Ligands, XXVII. Novel Bidentate Phosphane Ligands with M'R2 Acceptor Centres (M' = Si, Ge; R = Me, Ph)

Abstract

Dipod ligands R2M'(OCH2PMe2)x(CH2CH2PMe2)2-x (R = Me, Ph; M' = Si, Ge; x = 0 - 2) have been prepared by reacting R2M'Cl2 and R2M'ClxVi2-x (x = 0, 1), respectively, with Me2PCH2OH in the presence of trimethylamine, in case of the resulting vinyl-M' derivatives R2M'(OCH2PMe2)xVi2-x (x = 0, 1) followed by the photochemical addition of Me2PH to the vinyl groups. Analytical (C, H) and spectroscopic (NMR, MS) investigations prove the purity and identity of the new donor/acceptor ligands.