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please help i don\'t understand what i am suppose to do there is what i did and

ID: 529534 • Letter: P

Question

please help i don't understand what i am suppose to do

there is what i did and it is followed by the questions

C. Octahedral complexes. 1. Construct 6 ethylenediamine molecules: C C N N (we are not showing the hydrogen atoms here). These will attach to the metal atom through the nitrogen atom’s lone pairs.

2. Construct the model for the tris(ethylenediamine)cobalt(II) ion.

3. Using the model from step 2 as a guide, construct the mirror image of the model in step 2.

4. Rotate the model from step 3 to try to make it match up exactly (superimpose) with the model from step 2.

5. Replace one of the ethylenediamines in each model with 2 chloride ions. The two chloride ions should be in adjacent positions around the central metal atom (cis- conformation).

6. Rotate one of the modified models to try to make it match up exactly (superimpose) with the other one.

7. Replace one more of the ethylenediamines with 2 ammonia molecules in each of the models.

a. While the chlorides are in the cis- position, examine the structures to see if the models match up exactly (superimpose).

8. In each model assembled in step 7 swap the positions of two of the appropriate ligands so that the chloride ions are on opposite sides of the metal atom (trans- conformation).

9. Rotate one of the modified models to try to make it match up exactly (superimpose) with the other one.

question

C. Refer to the models that you constructed for this portion of the lab.

Did the mirror images of the models of the tris(ethylenediamine)cobalt(II) ion match up exactly (superimpose) with one another?

Does this complex ion exist as enantiomers?

Did the mirror images of the models of the cis-dichloridobis(ethylenediamine)cobalt(II) match up exactly (superimpose) with one another?

Does this compound exist as enantiomers? Did the mirror images of the models of either cis- or trans-diamminedichlorido (ethylenediamine)cobalt(II) match up exactly (superimpose) with one another?

Which of these compounds exist as enantiomers if any?

Explanation / Answer

Ans: Refering all the instructions properly we found that