Draw all geometrical and linkage isomers of Co(NH3)4(NO2)2

The coordination complex Co(NH₃)₄(NO₂)₂ can exhibit different isomeric forms due to its geometric and linkage characteristics.

1. Geometrical Isomers

Geometrical isomers arise when the ligands can be arranged in different relative positions. In the case of Co(NH₃)₄(NO₂)₂, there are two main geometrical isomers:

• Cis-Isomer: This form has the two nitro (NO₂) ligands adjacent to each other.
• Trans-Isomer: In this arrangement, the nitro ligands are positioned opposite one another.

2. Linkage Isomers

Linkage isomers result from the ability of a ligand to coordinate to the metal in different ways. In our complex, the nitro groups can bind to the cobalt through either the nitrogen or the oxygen atom:

• NO₂^N-Linkage Isomer: The nitro group is bonded through the nitrogen atom.
• NO₂^O-Linkage Isomer: Here, the nitro group is bonded through the oxygen atom.

Summary of Isomers

In total, you can have the following isomers for Co(NH₃)₄(NO₂)₂:

• Cis-NO₂^N
• Cis-NO₂^O
• Trans-NO₂^N
• Trans-NO₂^O

This gives us a good overview of both the geometrical and linkage isomers that can be derived from Co(NH₃)₄(NO₂)₂.