Synthesis of a Lewis acid bearing cyclopentadienyl ligand and its tricarbonylmanganese(I) complex

The synthesis of a bimetallic compound comprising a Lewis acidic organochlorostannane and a transition metal carbonyl is reported. The target complex, [(CO)3Mn(η5-C5H4(CH2)3SnMe2Cl)], 2, is prepared in four steps. The final step involves an exchange reaction between [(CO)3Mn(η5-C5H4(CH2)3SnMe3)], 1, and SnMe2Cl2. Infrared spectroscopy demonstrates no interaction between the Lewis acid and lone pair on the carbonyl oxygen.