Question

IUPAC name of ptcl2 (NH3)2

Answer 1

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The complex ion is thus [PtCl2(NH3)4]2+. The coordination compound is [PtCl2(NH3)4]Cl2. The nameof this compound is tetraamminedichloridoplatinum(IV) chloride.

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Answer 2

IUPAC name of  $Pt(Cl_2(NH_3)_2$ is diammine dichloro platinum (II)

Explanation :

Rules for naming of the coordination compounds :

The ligands are named first then metal.

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

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

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.

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

In the given coordination compound, Pt is the cobalt metal, $cl$ and $NH_3$ are the ligands named as chloro and ammine respectively

The charge on chloro is -1 and ammine is 0.

x+2(-1)+2(0) = 0

x=+32

Hence, the IUPAC name of $Pt(Cl_2(NH_3)_2$ is diammine dichloro platinum (II)

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