Question:
CO and CN are referred as $\pi$ acid ligands.
In CO and CN vacant $\pi$ type orbitals are present.
CO and CN are referred as $\pi$ acid ligands.
In CO and CN vacant $\pi$ type orbitals are present.
Updated On: Jul 6, 2022
- Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
- Both Assertion and Reason are true and Reason is not the correct explanation of Assertion.
- Assertion is true but Reason is false.
- Both Assertion and Reason are false.
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The Correct Option is A
Solution and Explanation
The ligands having vacant $\pi$-type orbitais have a tendency to receive back donated $\pi$ electrons, thus these are called $\pi$-acid ligands or $\pi$ acceptor ligands, e.g., CO and NO have Ione pair as well as $\pi$ or $\pi^*$ orbitais which take part in the formation of $\pi$-bond with central metaI atom as observed in case of carbonyls.
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Concepts Used:
Coordination Compounds
A coordination compound holds a central metal atom or ion surrounded by various oppositely charged ions or neutral molecules. These molecules or ions are re-bonded to the metal atom or ion by a coordinate bond.
Coordination entity:
A coordination entity composes of a central metal atom or ion bonded to a fixed number of ions or molecules.
Ligands:
A molecule, ion, or group which is bonded to the metal atom or ion in a complex or coordination compound by a coordinate bond is commonly called a ligand. It may be either neutral, positively, or negatively charged.