How can I identify and draw the optical isomers for all the isomers of #[Co(NH_3 )_2Cl_2 ]^-#

Answer 1

Quite possibly you mean, #[Co(NH_3)_2Cl_4]^-#, i.e. an octahedron, not a tetrahedron.

As written, the cobalt complex would not support optical isomerism. The Co(III) complex, #[Co(NH_3)_2Cl_4]^-#, would support geometric isomerism; it may be cis or trans with respect to the ammine ligands.
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Answer 2

To identify and draw the optical isomers for all the isomers of [Co(NH3)2Cl2]^-, you need to consider the coordination geometry around the central cobalt atom. The coordination number of cobalt in this complex is four, with two ammine ligands (NH3) and two chloride ions (Cl^-) as ligands. Since there are two different ligands, geometric isomerism is possible.

The possible isomers are:

  1. cis-[Co(NH3)2Cl2]
  2. trans-[Co(NH3)2Cl2]

For each isomer, you can then draw the optical isomers by considering the arrangement of the ligands in space, specifically with respect to the cobalt atom. The optical isomers arise due to the non-superimposable mirror images of the molecule.

The structural formulas of the optical isomers will depend on the specific arrangement of ligands around the cobalt atom in each isomer, but they will be mirror images of each other.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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