COMEDK · Chemistry · 24. Coordination Compounds
Which one of the following coordination compounds will exhibit both geometrical and optical isomerism?
- A \(\left[\mathrm{Cr}(\mathrm{ox})_3\right]^{3-}\)
- B \([\mathrm{Co}(\mathrm{CN}) 6]^{3-}\)
- C \(\left[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2\right]^{+}\)
- D \(\left[\mathrm{Co}\left(\mathrm{NO}_3\right)_3\left(\mathrm{NH}_3\right)_3\right]\)
Answer & Solution
Correct Answer
(C) \(\left[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2\right]^{+}\)
Step-by-step Solution
Detailed explanation
The complex \(\left[\mathrm{Cr}(\mathrm{ox})_3\right]^{3-}\) is a tris-chelated complex of the form \(M(AA)_3\). It exhibits optical isomerism but does not show geometrical isomerism because all donor atoms are identical. The complex \([\mathrm{Co}(\mathrm{CN})_6]^{3-}\) is an…
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