The EAN of the central metal atom in Fe_2(CO) | vedclass

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Question

(B) In $Fe_2(CO)_9$,each $Fe$ atom is bonded to $3$ terminal $CO$ ligands,$3$ bridging $CO$ ligands,and one $Fe-Fe$ bond.The atomic number of $Fe$ is

Vedclass · Accepted Answer

$36$

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(B) In $Fe_2(CO)_9$,each $Fe$ atom is bonded to $3$ terminal $CO$ ligands,$3$ bridging $CO$ ligands,and one $Fe-Fe$ bond.The atomic number of $Fe$ is $26$.The oxidation state of $Fe$ in $Fe_2(CO)_9$ is $0$.The number of electrons donated by $3$ terminal $CO$ ligands is $3 	imes 2 = 6$.The number of electrons donated by $3$ bridging $CO$ ligands is $3 	imes 1 = 3$.The number of electrons from the $Fe-Fe$ bond is $1$.$EAN = Z - 	ext{oxidation state} + 	ext{electrons from ligands} + 	ext{electrons from metal-metal bond}$$EAN = 26 - 0 + 6 + 3 + 1 = 36$.

The $EAN$ of the central metal atom in $Fe_2(CO)_9$ is:

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