Nomenclature Of Coordination Compounds

The IUPAC name of the compound is Tetraamine copper (II) dinitrate
In this copper has oxidation state and 4 amine groups are present.

Step 1: Identify the ligands and central metal ion.
In the given compound , is the ammine ligand and is the nitro ligand.
The central metal ion is cobalt.
Step 2: Determine the oxidation state of cobalt.
The total charge on the complex is zero.
The ligands are neutral, and each is a monodentate ligand with a charge of -1.
Since there are three ions, the charge on the cobalt ion must be +3.
Step 3: Name the compound.
The compound contains three ligands (ammine) and three ligands (nitro).
The oxidation state of cobalt is +3, so the name is "Trinitrotriamminecobalt(III)".