Question

Which of the following pairs represents linkage isomers ?

• A. $\left[Cu\left(NH_{3}\right)_{4}\right]\left[PtCl_{4}\right]$ and $\left[Pt\left(NH_{3}\right)_{4}\right]\left[CuCl_{4}\right]$
• B. $\left[Pd\left(PPh_{3}\right)_{2}\left(NCS\right)_{2}\right]$ and $\left[Pd\left(PPh_{3}\right)_{2}\left(SCN\right)_{2}\right]$
• C. $\left[CO\left(NH_{3}\right)_{5}\,(NO_{3})\right]SO_{4}$ and $\left[CO\left(NH_{3}\right)_{5}\,(SO_{4})\right]NO_{3}$
• D. $\left[PtCl_{2}\left(NH_{3}\right)_{4}\right]Br_{2} \,and\, [PtBr_{2}\left(NH_{3}\right)_4]Cl_{2}$

Answer 1

Answer: (B)

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