Select the correct `IUPA` name for
`[Pt(C_(5)H_(5)N)_(4)[[PtCI_(4)]` complex

Options

A. Tetrapyridineplatinate(II)tetrachloridoplatinate(II)
B. Tetrapyridineplatinate(II)tetrachloridoplatinate(II)
C. Tetrapyridineplatinate(II)tetrachloridoplatinate(II)
D. Tetrapyridineplatinum(II)tetrachloridoplatinate(II)

Answer

To determine the correct IUPAC name for the coordination compound \([Pt(C_5H_5N)_4][PtCl_4]\), we will follow a systematic approach to naming coordination complexes.

### Step-by-Step Solution:

1. **Identify the Components**:
- The complex consists of a cationic part \([Pt(C_5H_5N)_4]^2+\) and an anionic part \([PtCl_4]^{2-}\).
- The ligand \(C_5H_5N\) is pyridine, and the ligand \(Cl\) is chlorido.

2. **Count the Ligands**:
- There are four pyridine ligands in the cationic part. The prefix for four is "tetra".
- There are four chlorido ligands in the anionic part. The prefix for four is also "tetra".

3. **Name the Ligands**:
- The ligand pyridine is named as "pyridine".
- The ligand chlorido is named as "chlorido".

4. **Name the Cationic Part**:
- The central metal in the cationic part is platinum (Pt).
- Since the oxidation state of platinum in the cationic part is +2, we simply name it "platinum".

5. **Name the Anionic Part**:
- The central metal in the anionic part is also platinum (Pt), but since it is part of an anionic complex, we use the suffix "platinate".
- The oxidation state of platinum in the anionic part is +2, which we denote as "platinate(II)".

6. **Combine the Names**:
- The full name of the cationic part is "tetrapyridine platinum(II)".
- The full name of the anionic part is "tetrachlorido platinate(II)".
- When combining these, we write the cationic part first followed by the anionic part.

7. **Final IUPAC Name**:
- The complete IUPAC name for the coordination compound is:
\[ \text{tetrapyridine platinum(II) tetrachlorido platinate(II)} \]