3. Decide whether each pair of formulas represents enantiomers, diastereomers, structural isomers or identical molecules. CH3 CH 3 CH 2OH Br CO2H Br C 'F CH 3"C H H 3C "CO2H CH 2OH H (а) (b) CH 3 CH 3 Br Br CI HO НО OH НО CI Br Br CI -CI F H CH 3 CH 3 (с) (d) OH OH ОН CH 3 H. CH 3 CH 3 H- H NH 2 H H. CI CH 3- НО -CH 20H H CO2H NH 2 НО COH CH 20H OH CI (е) (f) NC CH 3 CH 2OH CH 3 НО CN CH 3 ОН HO „CH 3 H 3C CH 3 H CN НО `CH 2OH CH 20H НО CH 3 НО CN CH 3 CH 2OH (g) (h) CH 3 CH 3 H НО OH H. H H CH 3 ОН CH 3 (i) () 2
3. Decide whether each pair of formulas represents enantiomers, diastereomers, structural isomers or identical molecules. CH3 CH 3 CH 2OH Br CO2H Br C 'F CH 3"C H H 3C "CO2H CH 2OH H (а) (b) CH 3 CH 3 Br Br CI HO НО OH НО CI Br Br CI -CI F H CH 3 CH 3 (с) (d) OH OH ОН CH 3 H. CH 3 CH 3 H- H NH 2 H H. CI CH 3- НО -CH 20H H CO2H NH 2 НО COH CH 20H OH CI (е) (f) NC CH 3 CH 2OH CH 3 НО CN CH 3 ОН HO „CH 3 H 3C CH 3 H CN НО `CH 2OH CH 20H НО CH 3 НО CN CH 3 CH 2OH (g) (h) CH 3 CH 3 H НО OH H. H H CH 3 ОН CH 3 (i) () 2
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Exercise: Identifying Isomers**
Determine whether each pair of formulas corresponds to enantiomers, diastereomers, structural isomers, or identical molecules.
**Pairs:**
(a)
- Left: Molecule with a central carbon atom bonded to CH₃, Br, F, and H.
- Right: Same molecule but with a mirror image orientation (as depicted by dashed and wedged bonds).
(b)
- Left: Molecule with CH₃, H, CO₂H, and CH₂OH attached to a central carbon.
- Right: Molecule with an identical formula but different structural arrangement around the carbon backbone.
(c)
- Left: Cyclopentane ring with Br and F substituents at 1,3 positions, both on wedge bonds.
- Right: Cyclopentane ring with Br and F substituents at 1,3 positions, inverted stereochemistry.
(d)
- Left: Molecule with a central carbon bonded to two Cl atoms and two CH₃ groups.
- Right: Same molecule but with CH₃ and OH substituents in different positions.
(e)
- Left: Three-carbon chain with OH and CO₂H groups in a specific arrangement.
- Right: Similar structural formula with a slightly different arrangement of OH and CO₂H groups.
(f)
- Left: Molecule with a central carbon bonded to OH, Cl, NH₂, and CH₃.
- Right: Identical bonding pattern but different 3D orientation.
(g)
- Left: Molecule with CH₃, CN, and OH around a central carbon.
- Right: Similar structure presented in a different spatial orientation.
(h)
- Left: Cyclohexane ring with CH₃ and CH₂OH substituents.
- Right: Cyclohexane ring with HO and CH₃ substituents in different positions.
(i)
- Left: Cyclopentane ring with OH and H substituents in specific positions.
- Right: Cyclopentane ring with similar substituents in different stereochemical arrangement.
(j)
- Left: Cyclohexane ring with two CH₃ substituents at 1,4 positions.
- Right: Cyclohexane ring with same substituents but different stereochemical positions.
**Explanation:**
For each pair:
- **Enantiomers
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