Assignment_3_Answers

Assignment_3_Answers - CHM 1321 Assignment 3 - ANSWERS 1)...

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CHM 1321 Assignment 3 - ANSWERS 1) Identify each of the following pairs as constitutional isomers, stereoisomers (configurational isomers), or conformers. + + + a) b) c) Br Br + Br Br + + Br d) e) f) Stereoisomers Constitutional isomers Same compound Stereoisomers conformers (conformational isomers) Constitutional isomers 2) Draw each structure below along with its mirror image. Indicate whether the compound is chiral or achiral. a) cis -1,2-dimethylcyclopentane. b) trans -1,2-dimethylcyclopentane CH 3 CH 3 H 3 C H 3 C Achiral - mirror images are superimposable plane of symmetry exists (meso compound) a) CH 3 CH 3 H 3 C H 3 C Chiral - mirror images are not superimposable b) c) cis -1,3-dimethylcyclohexane d) trans -1,3-dimethylcyclohexane Achiral - mirror images are superimposable plane of symmetry exists (meso compound) c) Chiral - mirror images are not superimposable d) CH 3 CH 3 H 3 C CH 3 CH 3 CH 3 H 3 C CH 3 O e) O O f) O Achiral - mirror images are superimposable - no stereogenic centre, 2 identical groups on tetrasubstituted carbon Plane of symmetry exists O O Chiral - mirror images are not superimposable
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Assignment 3 - Answers 2 Question 2 cont’d: g) CH 3 CClBrH h) (CH 3 ) 2 CHOH i) CH 3 CH 2 CHOHCH 3 j)CH 3 CH 2 CHOHCH 2 CH 3 Cl Br Cl Br g) Chiral - mirror images not superimposable h) OH HO
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Assignment_3_Answers - CHM 1321 Assignment 3 - ANSWERS 1)...

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