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\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4\left(\mathrm{NO}_2\right)_2\right] \mathrm{Cl}\) exhibits
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linkage isomerism, ionization isomerism and geometrical isomerism
The given compound may have linkage isomerism due to presence of \(\mathrm{NO}_2\) group which may be in the form \(-\mathrm{NO}_2\) or \(-\mathrm{ONO}\).
It may have ionisation isomerism due to presence of two ionisable group \(-\mathrm{NO}_2 \&-\mathrm{Cl}\). It may have geometrical isomerism in the form of cis-trans form as follows :
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}\left(\mathrm{NO}_2\right)\right] \mathrm{NO}_2 \&\left[\mathrm{Co}\left(\mathrm{NH}_3\right)\left(\mathrm{NO}_2\right)_2\right] \mathrm{Cl}-\) - ionisation isomers.
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{NO}_2\right)_2\right] \mathrm{Cl} \&\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5(\mathrm{ONO})_2 \mathrm{Cl}\right.\) -Linkage isomers
Geometrical isomers
It may have ionisation isomerism due to presence of two ionisable group \(-\mathrm{NO}_2 \&-\mathrm{Cl}\). It may have geometrical isomerism in the form of cis-trans form as follows :
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}\left(\mathrm{NO}_2\right)\right] \mathrm{NO}_2 \&\left[\mathrm{Co}\left(\mathrm{NH}_3\right)\left(\mathrm{NO}_2\right)_2\right] \mathrm{Cl}-\) - ionisation isomers.
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{NO}_2\right)_2\right] \mathrm{Cl} \&\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5(\mathrm{ONO})_2 \mathrm{Cl}\right.\) -Linkage isomers
Geometrical isomers
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