Question

Ligands can be arranged according to the magnitude of Δ₀ and the arrangement is given below :

l^- < Br^- < Cl^- < F^- < OH^- < H₂O < NH₃ < (en)

1. What is this series known as?

2. Is the sequence incorrect order? 

3. Identify the weak field and strong field ligands.

Answer 1

1. Spectrochemical series 

2. Yes

3. The ligands above water are strong ligand and the ligands below water are weak ligands.

Weak filed ligands – l^-, Br^-, Cl^-, F^-, OH^-, H₂O 

Strong filed ligands – NH₃, en