Question

Write down the IUPAC names of: (i) Na[PtBrCl(ONO)(NH\(_3\))] (ii) [Ag(NH\(_3\))\(_2\)][Ag(CN)\(_2\)]

Hint:

Always name the cation first, then the anion. For anionic complexes, the metal name ends with \textbf{–ate} and ligand names are written in alphabetical order.

Answer 1

Step 1: For \(\text{Na[PtBrCl(ONO)(NH}_3)]\): The complex ion is anionic, so the metal name ends with –ate. Oxidation state of Pt is \(+2\). Ligands are named in alphabetical order: ammine, bromido, chlorido, nitrito-\(\kappa O\).
Step 2: For \([\text{Ag(NH}_3)_2][\text{Ag(CN)}_2]\): The cationic complex \([\text{Ag(NH}_3)_2]^+\) is named first as diamminesilver(I). The anionic complex \([\text{Ag(CN)}_2]^-\) is named as dicyanidoargentate(I).