Question:

Which of the following pairs represents linkage isomers ?

Updated On: Aug 1, 2022
  • $\left[Cu\left(NH_{3}\right)_{4}\right]\left[PtCl_{4}\right]$ and $\left[Pt\left(NH_{3}\right)_{4}\right]\left[CuCl_{4}\right]$
  • $\left[Pd\left(PPh_{3}\right)_{2}\left(NCS\right)_{2}\right]$ and $\left[Pd\left(PPh_{3}\right)_{2}\left(SCN\right)_{2}\right]$
  • $\left[CO\left(NH_{3}\right)_{5}\,(NO_{3})\right]SO_{4}$ and $\left[CO\left(NH_{3}\right)_{5}\,(SO_{4})\right]NO_{3}$
  • $\left[PtCl_{2}\left(NH_{3}\right)_{4}\right]Br_{2} \,and\, [PtBr_{2}\left(NH_{3}\right)_4]Cl_{2}$
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The Correct Option is B

Solution and Explanation

$NCS^-$ is ambidentate ligand and it can be linked through N (or) S
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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.