Question

Indicate the types of isomerism exhibited by the follow complexes and draw the structures for these isomers :
`[Co(NH_(3))_(5)(NO_(2))](NO_(3))_(2)`

Answer 1

`[Co(NH_(3))_(5)(NO_(2))](NO_(3))_(2):` it can exist as a pair of ionization isomers as well as linkage
Ionization isomers :
`[Co(NH_(3))_(5)(NO_(2))](NO_(3))_(2) and [Co(NH_(3))_(5)(NO_(3))(NO_(2))(NO_(3))` as they give different ions on ionization.
`[Co(NH_(3))_(5)(NO_(2))](NO_(3))_(2) overset("Ionization")rarr[Co(NH_(3))_(5)(NO_(2))]^(2+) +2NO_(3)^(-)`
`[Co(NH_(3))_(5)(NO_(3))](NO_(2))(NO_(3)) overset(" Ionization")rarr[Co(NH_(3))_(5)NO_(3)]^(2+) +NO_(2)^(-) +NO_(3)^(-)`
Linkage isomers : `[Co(NH_(3))_(5)(NO_(2))](NO_(3))_(2) and [Co(NH_(3))_(5) ONO](NO_(3))_(2)`