The IUPAC of `[Fe(H_(2)O)_(6)]Cl_(3)` is

Options

A. Hexaaquirion(III) chlorine
B. Hexaquorion(III) trichloride
C. Hexaaquairion(III) chloride
D. Hexa aquairion(III) trichloride

Explanation

To determine the IUPAC name of the coordination complex \([Fe(H_2O)_6]Cl_3\), we will follow these steps:

### Step 1: Identify the components of the complex
The complex can be broken down into its cationic part and anionic part:
- Cationic part: \([Fe(H_2O)_6]^{3+}\)
- Anionic part: \(3Cl^{-}\)

### Step 2: Name the ligands
The ligand in this complex is water, which is referred to as "aqua" in coordination chemistry. Since there are six water molecules, we use the prefix "hexa" to indicate the number of ligands. Therefore, the ligand name is:
- HexaAqua

### Step 3: Name the metal and determine its oxidation state
The metal in this complex is iron (Fe). To find the oxidation state of iron in this complex, we can set up the following equation:
- Let the oxidation state of iron be \(X\).
- The oxidation state of water (H2O) is 0 since it is a neutral ligand.

The total charge of the cationic part is +3 (as indicated by the formula). Therefore, we can write:
\[ X + 6(0) = +3 \]
This simplifies to:
\[ X = +3 \]
Thus, the oxidation state of iron is +3.

### Step 4: Combine the names
Now, we combine the ligand name and the metal name with its oxidation state. The name of the metal with its oxidation state is:
- Iron(III)

### Step 5: Name the anionic part
The anionic part of the complex is chloride (Cl). Since there are three chloride ions, we simply refer to it as "chloride" without any prefix.

### Final IUPAC Name
Putting it all together, the IUPAC name of the complex \([Fe(H_2O)_6]Cl_3\) is:
- **HexaAqua Iron(III) Chloride**

---