Which of the following correctly acts as a -acid ( -acceptor) ligand? — Coordination Compounds Chemistry Question
Question
Which of the following correctly acts as a $\pi$-acid ( $\pi$-acceptor) ligand?
Answer: C
💡 Solution & Explanation
$CO$ has empty $\pi^*$ antibonding orbitals that accept electron density from the metal's filled d-orbitals, making it a strong $\pi$-acid ligand [14, 15].
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