Which is not true about metal carbonyls? – InterviewSolution

1.	Which is not true about metal carbonyls?
Answer» <P>Here CO acts as a LEWIS base as well Lewis acid here metal acts as lewis base as well as lewis acid here `d pi- p pi` back bonding takes place Here `p pi-p pi` ack bonding takes place Solution :CO is called `pi`-acid ligand. In metal carbonyl complexes, there is donation of an element pair from CARBON to the EMPTY orbital of metal and thee simultaneously a back `pi`-bonding is formed by sideways OVERLAP of a filled orbital on the metal with empty antibonding `pi_(2py)^(**)` orbital of CO.

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