Some ligands donate a lone pair to the metal and also accept metal electron density into an empty antibonding orbital of their own. Ignore ligands that donate from a π bond. How many of these ligands

Question

Some ligands donate a lone pair to the metal and also accept metal electron density into an empty antibonding orbital of their own. Ignore ligands that donate from a π bond. How many of these ligands behave this way? CO, N₂, NO⁺, CN⁻, PF₃, NH₃, F⁻, ethylene (C₂H₄), ethane-1,2-diamine

TestHub · Accepted Answer

CO, N₂, NO⁺, CN⁻ and PF₃ donate through a lone pair and accept into π* or σ* orbitals. NH₃, F⁻ and ethane-1,2-diamine are pure donors. Ethylene donates from its π bond, so it is excluded. Count = 5.

Chemistry - Coordination Chemistry Question with Solution | TestHub

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