Question

The IUPAC name of the complex $[Pt(NH_3)_2Cl(NH_2CH_3)]Cl$ is :

• A. Diammine(methanamine)chlorido platinum(II)chloride
• B. Diamminechlorido(methanamine) platinum(II)chloride
• C. Diamminechlorido(aminomethane) platinum(II)chloride
• D. Bisammine(methanamine)chlorido platinum(II)chlorid e

Answer 1

The Correct Option is B

Correct answer: diamminedichloridoplatinum(II) 

The compound cis-Platin has the formula: \[ \text{[Pt(NH}_3)_2\text{Cl}_2] \]

IUPAC naming rules applied:

• Neutral ligands like NH₃ are named as ammine.
• Negative ligands like Cl^- are named as chlorido.
• Ligands are listed in alphabetical order, regardless of charge: ammine before chlorido.
• The oxidation state of platinum here is +2, hence denoted as (II).

So, the correct name is: diamminedichloridoplatinum(II)

Answer 2

$\left[ Pt \left( NH _{3}\right)_{2} Cl \left( NH _{2} CH _{3}\right)\right] Cl$ Oxidation state of $Pt$ is $X$. $x+2(0)+1(-1)+1 \times(0)=+1$ $x-1=+1$ $x=+1+1$ $x=2$ Oxidation state Platinum is II Name: Diamminechlorido (methanamine)platinum(II) chloride

Answer 3

Cisplatin has the formula \([Pt(NH_3)_2Cl_2]\). The oxidation state of platinum in this complex is +2.

The IUPAC naming conventions for coordination compounds are:

• Ligands are named alphabetically.
• The oxidation state of the metal is indicated in Roman numerals in parentheses.
• The name of the complex ends with the name of the metal.

Following these rules:

• "ammine" refers to the NH₃ ligand. There are two of them, so "diammine."
• "chlorido" refers to the Cl^- ligand. There are two of them, so "dichlorido."
• Platinum has an oxidation state of +2, so "platinum(II)."

Therefore, the correct IUPAC name is diamminedichloridoplatinum(II).

Answer:

diammines dichlorido platinum (II)