Allyl complexes of molybdenum with Schiff base ligands. The crystal structures of [MoCl(CO)2{N(C6H4-2-OMe)C(Me)C5H4N}(η3-C3H5)] and [MoCl(CO)2{N(Me)C(Ph)C5H4N}(η3-C3H5)] are described

Treatment of the molybdenum tetracarbonyl complexes of [Mo(CO)4L2] (L2=pyridyl amine Schiff base ligands) with allyl chloride in refluxing THF afforded η3-allyl complexes [MoCl(CO)2L2(η3-allyl)] (1–9). These complexes have been characterised by various techniques including 1H-NMR, IR and FABMS spectroscopies and the single crystal X-ray structure determinations of the complexes [MoCl(CO)2{N(C6H4-2-OMe)C(Me)C5H4N}(η3-C3H5)] (3) and [MoCl(CO)2{N(Me)C(Ph)C5H4N}(η3-C3H5)] (4).