Synthesis and crystal structures of the first germanium-containing alkylidene complexes of molybdenum R3Ge-CH=Mo(NAr)(OR ')(2) (R = Me, Ph) with direct germanium-carbene carbon bond

摘要

The novel germanium-containing alkylidene complexes of molybdenum R3Ge-CH=Mo(NAr)(OCMe2CF3)(2) (Ar = 2,6-i-Pr2C6H3; R = Me, Ph) have been prepared by the reaction of organogermanium vinyl reagents R-3 GeCH=CH2 with known alkylidene compounds Alkyl-CH=Mo(NAr)(OCMe2CF3)(2) (Alkyl = Bu-t, PhMe2C). The titled compounds were isolated as crystalline solids and characterized by elemental analysis, H-1 NMR, C-13 NMR spectroscopy and X-ray diffraction studies. The geometry of the Mo atoms in the compounds can be described as a distorted tetrahedron. (c) 2005 Elsevier B.V. All rights reserved.