Coordination Compounds - Result Question 8
####10. The complexes $[Co(NH_3)_6][Cr(CN)_6]$ and $[Cr(NH_3)_6][Co(CN)_6]$ are the examples of which type of isomerism?
[2011]
(a) Linkage isomerism
(b) Ionization isomerism
(c) Coordination isomerism
(d) Geometrical isomerism
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Solution:
- (c)
Interchange of ligand between the complexes give isomers e.g.
$[Co(NH_3)_6][Cr(CN)_6]$ is an isomer of $[Co(CN)_6]$ [Cr $.(NH_3)_6]$
Coordination isomerism occurs when cationic and anionic complexes of different metal ions are present in a salt.
