Nucleophilic-electrophilic attack at coordinated carbonyls

Formation of cluster anions on surfaces or in solution involves nucleophilic or electrophilic attack of water, hydroxyl groups, or alcohols on coordinated carbonyl groups this behavior is relevant both to the WGSR reaction and to the formation of carbene-substituted complexes and related derivatives. Examples in organic solvents are  

Finally, unexpected P O bond formation occurs during the reaction of PPh2Cl with [HFe3(CO)9(MeC2Ph)] the metallacyclic Fe2(CO)6(PhCCMeCHOPPh2) is formed by shift of the cluster-bound hydride to the carbon and attack of PPh2 on the oxygen of a coordinated CO (Fig. 7).  

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