Transition metal formyl complex

Metal formyls are proposed as intermediates in the hydrogenation of carbon monoxide, as occurs in the Fischer-Tropsch process.

A second resonance structure has a M=C double bond, with negative charge on oxygen.

[4] Metal formyls participate in many reactions, many of which are motivated by interest in Fischer-Tropsch chemistry.

The formyl ligand also functions as a base, allowing the formation of M-CH=O-M' linkages.

[5] Decarbonylation leads to de-insertion of the carbonyl, yielding hydride complexes.