Chapter 18, Problem 18.11P

Interpretation Introduction

Interpretation:

The number of $\text{CO}$ ligands in $\text{Fe}\left(\text{0}\right)$ complex assuming that the resulting complex follows the $18$-electron rule is to be stated.

Concept introduction:

The complex that follows $18$- electron rule are most stable. The electrons are donated by $\text{CO}$ ligand to iron metal atom. These $18$ electrons occupy the bonding molecular orbitals making the compound stable.