Why can platinum form bonds directly with carbon?

Among the transition metals, platinum possesses one of the greatest tendencies to form bonds directly with carbon. This capability allows for the creation of organometallic complexes, which are essential in various industrial and chemical applications.123

The formation of these bonds is characterized by the metal's ability to engage in electron donor-and-acceptor interactions with carbon-containing ligands. For example, in Zeise’s salt—the first synthetic organometallic compound—an ethylene molecule attaches to the central platinum atom through its carbon atoms. In such complexes, the alkene ligand bonds to the platinum center through both electron donation and acceptance, a process similar to how the metal interacts with carbon monoxide. These unique bonding properties make platinum-group metals highly effective as catalysts in processes such as olefin polymerization and the production of various plastics.4325