Ferrocene is an organometallic compound because it contains a metal-carbon bond.

The IUPAC name of the compound [Fe(CO)5] is iron pentacarbonyl.

Metal-ligand bonds are typically covalent bonds.

The 18-electron rule states that a metal complex is stable when it has 18 electrons in its valence shell.

Carbon monoxide is an example of a sigma-bonded ligand because it donates a pair of electrons to the metal center through a sigma bond.

Ethylene is an example of a pi-bonded ligand because it donates a pair of electrons to the metal center through a pi bond.

A homogeneous catalyst is in the same phase as the reactants, while a heterogeneous catalyst is in a different phase.

Nickelocene is an example of a homogeneous catalyst because it is in the same phase as the reactants.

Palladium on carbon is an example of a heterogeneous catalyst because it is in a different phase than the reactants.

Ligands donate electrons to the metal center, accept electrons from the metal center, and stabilize the metal center.

All of the above reactions are examples of organometallic reactions.

Carbonylation is the name of the reaction in which an organometallic compound inserts a carbon monoxide molecule into a carbon-carbon bond.

Hydroformylation is the name of the reaction in which an organometallic compound inserts a hydrogen molecule into a carbon-carbon bond.

Alkylation is the name of the reaction in which an organometallic compound inserts an alkyl group into a carbon-carbon bond.

Acylation is the name of the reaction in which an organometallic compound inserts an acyl group into a carbon-carbon bond.