Which one of the following complexes will have and B.M.?

(a)

(b)

(c)

(d)

Question

Which one of the following complexes will have  and  B.M.?

(a)

(b)

(c)

(d)

Canvas Classes · Accepted Answer

Strategy:
 A CFSE of 0 in an octahedral field can only occur for completely symmetrical d-electron distributions: , high-spin , and . Check which complex fits this and matches the magnetic moment.

Step 1: Evaluate the options
- (a) :  () low spin  CFSE = .
- (b) :  () low spin  CFSE = .
- (c) :  () high spin  CFSE = .
- (d) :  is a  metal.  forms a weak field, yielding a high-spin complex.

Step 2: Validate the  high-spin complex
Configuration: .
.
Number of unpaired electrons, .
Magnetic momen

More questions from Coordination Compounds