1. Two types of isomerism are possible for the six-coordinate complex Cr(NO2)3.6H2O. Identify all isomers.

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**Problem 1:** Two types of isomerism are possible for the six-coordinate complex Cr(NO₂)₃·6H₂O. Identify all isomers.

In coordination chemistry, complexes can exhibit structural variations known as isomers. For the given complex, Cr(NO₂)₃·6H₂O, two common types of isomerism that might occur are:

1. **Geometrical Isomerism:** This involves the spatial arrangement of ligands around the central metal atom. For octahedral complexes like Cr(NO₂)₃·6H₂O, common geometrical isomers are:

   - **Facial (fac) Isomer:** Here, three identical ligands occupy one face of the octahedron.
   - **Meridional (mer) Isomer:** Three identical ligands form a meridian passing through the central atom.

2. **Optical Isomerism (Enantiomers):** This type of isomerism occurs when the complex is non-superimposable on its mirror image. Optical isomers rotate plane-polarized light differently.

Both types should be considered when identifying the potential isomers of Cr(NO₂)₃·6H₂O.
Transcribed Image Text:**Problem 1:** Two types of isomerism are possible for the six-coordinate complex Cr(NO₂)₃·6H₂O. Identify all isomers. In coordination chemistry, complexes can exhibit structural variations known as isomers. For the given complex, Cr(NO₂)₃·6H₂O, two common types of isomerism that might occur are: 1. **Geometrical Isomerism:** This involves the spatial arrangement of ligands around the central metal atom. For octahedral complexes like Cr(NO₂)₃·6H₂O, common geometrical isomers are: - **Facial (fac) Isomer:** Here, three identical ligands occupy one face of the octahedron. - **Meridional (mer) Isomer:** Three identical ligands form a meridian passing through the central atom. 2. **Optical Isomerism (Enantiomers):** This type of isomerism occurs when the complex is non-superimposable on its mirror image. Optical isomers rotate plane-polarized light differently. Both types should be considered when identifying the potential isomers of Cr(NO₂)₃·6H₂O.
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