Organometallic compounds are defined by which bond type?

• A. Organometallic Compounds
• B. Carbon-Carbon Bonding
• C. Hydrogen-Oxygen Bond
• D. Nitrogen-Oxygen Bond

Answer: (B)

Organometallic compounds are defined by a direct bond between a metal atom and a carbon atom of an organic ligand. This metal–carbon bond is the signature feature that links the inorganic metal center to an organic fragment, giving these compounds their unique chemistry. Examples include metal–aryl or metal–alkyl bonds, and metal–carbonyls where carbon monoxide donates through a C–M linkage. Bonds like carbon–carbon are purely organic, and hydrogen–oxygen or nitrogen–oxygen bonds are common in non-metal-containing substances; they do not establish the defining metal–carbon connection of organometallics.