What is the denticity of the dmg ligand?

Options

A. 1
B. 2
C. 4
D. 6

Answer

To determine the denticity of the DMG (dimethylglyoxymate) ligand, we can follow these steps:

### Step 1: Understand the Definition of Denticity
Denticity refers to the number of donor atoms in a ligand that can bond to a central metal atom. Each donor atom can donate a lone pair of electrons to the metal.

**Hint:** Remember that denticity is about how many atoms in the ligand can coordinate with the metal.

### Step 2: Analyze the Structure of DMG
The DMG ligand, or dimethylglyoxymate, has a specific structure. It contains two nitrogen atoms that have lone pairs available for donation.

**Hint:** Look for the atoms in the ligand that have lone pairs available for bonding.

### Step 3: Identify the Donor Atoms
In the case of DMG, both nitrogen atoms can donate a lone pair of electrons. Therefore, DMG has two donor atoms.

**Hint:** Count the number of atoms in the ligand that can donate lone pairs.

### Step 4: Determine the Denticity
Since DMG has two donor atoms (the two nitrogen atoms), its denticity is 2.

**Hint:** The denticity is equal to the number of donor atoms in the ligand.

### Conclusion
The denticity of the DMG ligand is 2.

**Final Answer:** Option 2 - 2

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