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Which of the following is the correct IUPAC name of the coordination isomer of
 $ [Pt{(N{H_3})_4}]{\text{ [Pd(}}{{\text{C}}_2}{O_4}{)_2}] $
(A) Diammine (oxalate) platinium $ (II) $ diammine (oxalate) pladate $ (II) $
(B) Diammine (oxalate) platinium $ (II) $ diammine (oxalate) palladium $ (I) $
(C) Tetraammineplatinium $ (IV) $ bis(oxalato) paladate $ (II) $
(D) Tetraammineplatinium $ (IV) $ bis(oxalato) palladium $ (II) $

Last updated date: 05th Mar 2024
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IVSAT 2024
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Hint: There are certain rules that govern the IUPAC naming of such complex coordination compounds. Those standard rules are to be followed accurately while naming and precisely , keeping in mind the small details .

Complete answer:
so, lets recall briefly the rules for IUPAC naming of coordination compounds:
 $ 1. $ Remember that the name of the ligand comes before the central atom.
 $ 2. $ The ligands first are written on the basis of their charge order: Neutral, negative, positive. And if the same charge ligands are present, then ligands are written in alphabetical order.
 $ 3. $ If the ligand already contains a numerical prefix , then the terms like – bis, tris, tetrakis are used before the name of that ligand.
 $ 4. $ Neutral ligands are given common names but there are few exceptions for the functional groups like $ N{H_3} $ - ammine, $ {H_2}O $ - aqua.
 $ 5. $ While writing the central atom, always remember to mention its oxidation state in parentheses.
So , using above rules, let’s write the name of our given compound:
First, we will write ligand name and then central atom:
So,the name of our ligand will be-
Tetraammineplatinium $ (IV) $ bis(oxalato) paladate $ (II) $ .
Always keep in mind the rules while naming the coordination compound.
Therefore the correct option is C.

Always keep in mind that if the complex is an anion, then the central atom always ends with the suffix – ate . like in our given coordination compound, the central atom palladium ends with –ate, i.e paladate , since it is in the anion complex. Whereas, in the cation complex, an atom is named according to its common name with some few exceptions.
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