The hybridization and magnetic behaviour of cobalt ion in \(\left[ Co \left( NH _3\right)_6\right]^{3+}\) complex, respectively is
The hybridization and magnetic behaviour of cobalt ion in \(\left[ Co \left( NH _3\right)_6\right]^{3+}\) complex, respectively is
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Strong field ligands like \(\text{NH}_3\) cause pairing of d-electrons, resulting in inner orbital complexes with \(d^2sp^3\) hybridization.
\(sp ^3 d ^2\) and paramagnetic
\(d ^2 sp ^3\) and paramagnetic
\(d ^2 sp ^3\) and diamagnetic
\(sp ^3 d ^2\) and diamagnetic
The Correct Option is C
Solution and Explanation
In \([\text{Co}(\text{NH}_3)_6]^{3+}\), cobalt is in the \(+3\) oxidation state with an electronic configuration of \([\text{Ar}]3d^6\). \(\text{NH}_3\) is a strong field ligand that causes pairing of 3d electrons. The hybridization is \(d^2sp^3\), forming an inner orbital complex. All electrons are paired, making the complex diamagnetic.
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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.