Question

Why carbon monoxide consider as organometallic ligand?

Answer 1

Carbon monoxide, CO, is a ubiquitousligand in organometallic and coordination chemistry. ... However, these polar ligands are therefore also more reactive; and more sensitive, e.g. to nucleophilic attack, because of a low-energy 2π LUMO. Our results suggest that BF and SiO should, in principle, be excellent ligands.

hope it will help you.

Answer 2

Metals carbonyls are coordination complexes of transitions metal with carbon monoxide ligands. Metal carbonyls are toxic by skin contact, inhalation or ingestion in part, because of their ability to carbonylate hemoglobin to give carboxy hemoglobin which prevents the binding of O2