is this orientation have non-zero dipole moment : Anti conformation of 1,2-dichloroethane

Explanation

To determine whether the anti-conformation of 1,2-dichloroethane has a non-zero dipole moment, we can follow these steps:

### Step 1: Understand the Structure
1,2-Dichloroethane has two chlorine atoms attached to the first and second carbon atoms of an ethane backbone. In the anti-conformation, the two chlorine atoms are positioned opposite each other.

### Step 2: Draw the Anti-Conformation
Draw the structure of 1,2-dichloroethane in its anti-conformation:
- Carbon 1 has a chlorine (Cl) atom and two hydrogen (H) atoms.
- Carbon 2 has a chlorine (Cl) atom and two hydrogen (H) atoms.
- The Cl atoms are positioned opposite each other, while the H atoms are also opposite.

### Step 3: Analyze the Dipole Moments
Chlorine is more electronegative than hydrogen, which means it will create a dipole moment towards itself. In the anti-conformation:
- The dipole moment from Cl on Carbon 1 points towards Carbon 2.
- The dipole moment from Cl on Carbon 2 points towards Carbon 1.

### Step 4: Determine the Resultant Dipole Moment
Since the dipole moments of the two Cl atoms are equal in magnitude but opposite in direction, they will cancel each other out. Additionally, the dipole moments from the hydrogen atoms will also cancel out because they are symmetrically arranged.

### Step 5: Conclusion
The net dipole moment (μ) of the anti-conformation of 1,2-dichloroethane is zero because all individual dipole moments cancel each other out. Therefore, this orientation does not have a non-zero dipole moment.

### Final Answer
The anti-conformation of 1,2-dichloroethane has a zero dipole moment.

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