Carbonyls Containing Bridging CO Groups Bonded Through C and

METAL CARBONYLS CONTAINING BRIDGING CO GROUPS BONDED THROUGH C AND O 

Calculations utilizing the valence bond method show that structure I is more stable for the HCO molecule and structure II is more stable for the COH ion  

the bridging carbonyl groups are more basic than the terminal ones. Therefore, the presence of hard acids may induce the formation of M-C-M bridges [equation (2.174)]. 

Compounds containing the M-CO-M grouping should even more readily be formed from carbonyls possessing in which the bridge is formed between three 

In the presence of hexaalkyldialuminum, [Co2(CO)g] and [ 04(00)12] undergo decomposition however, with AlBr3, adducts may be formed and probably have structures (2.175). 

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