Question

IUPAC NAME OF[Cu(H2O) 2(NH3)2]Cl2

Answer 1

aquadiamminecopper(║)chloride

Answer 2

IUPAC name of $[Cu(H_2O)_2(NH_3)_2]Cl_2$ is diamminediaqua copper (II) chloride

Explanation:

Rules for naming of the coordination compounds :

1. The ligand named first then metal.

2. The charge of metal indicated with the Roman numerals and enclosed in the parenthesis after metal name.

3. The ligands are named in alphabetical order before the metal ion.

4. Ligands that include a numerical prefix in the name use the prefixes bis for 2, tris for 3, or tetrakis for 4 to indicate their number.

5. If the complex ion is an anion, we drop the ending of the metal name and add –ate.

In the given coordination compound, Cu is the copper metal, $H_2O$ and $NH_3$ are the ligands named as aqua and ammine respectively.

The charge on $[Cu(H_2O)_2(NH_3)_2]$ is +2 and $H_2O$ and $NH_3$ are the neutral ligands

x+2(0)+2(0)=+2

x=+2

Hence, the IUPAC name of $[Cu(H_2O)_2(NH_3)_2]Cl_2$ is diamminediaqua copper (II) chloride

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