Textbook Question
A molecule of the type shown is discussed in greater detail in Section 6.5.1. Although it contains at least one atom with four different groups attached, why is it not a chiral molecule?
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Ch. 6 - Stereoisomerism: Arrangement of Atoms in Space
Mullins1st EditionOrganic Chemistry: A Learner Centered ApproachISBN: 9780137566471
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Table of contents
- Ch. 2 - General Chemistry Translated: Finding the Electrons114
- Ch. 3 - Alkanes and Cycloalkanes: Properties and Conformational Analysis109
- Ch. 4 - Acids and Bases: Electron Flow144
- Ch. 5 - Chemical Reaction Analysis: Thermodynamics and Kinetics118
- Ch. 6 - Stereoisomerism: Arrangement of Atoms in Space112
- Ch. 7 - Principles of Green (Organic) Chemistry3
- Ch. 8 - Alkenes I: Properties and Electrophilic Additions158
- Ch. 9 - Alkenes II: Oxidation and Reduction150
- Ch. 10 - Alkynes: Electrophilic Addition and Redox Reactions101
- Ch. 11 - Properties and Synthesis of Alkyl Halides: Radical Reactions108
- Ch. 12 - Substitution and Elimination: Reactions of Haloalkanes172
- Ch. 13 - Alcohols, Ethers and Related Compounds: Substitution and Elimination239
- Ch. 14 - Structural Identification I: Infrared Spectroscopy and Mass Spectrometry54
- Ch. 15 - Structural Identification II: Nuclear Magnetic Resonance Spectroscopy93
- Ch. 16 - Metals in Organic Chemistry48
- Ch. 17 - Carbonyl Addition Reactions: Aldehydes and Ketones45
- Ch. 18 - Nucleophilic Acyl Substitution I: Carboxylic Acids18
- Ch. 19 - Nucleophilic Acyl Substitution II: Carboxylic Acid Derivatives39
- Ch. 20 - Enolates: Carbonyl Addition and Substitution13
- Ch. 21 - Conjugated Systems I: Stability and Addition Reactions56
- Ch. 22 - Conjugated Systems II: Pericyclic Reactions54
- Ch. 23 - Benzene I: Aromatic Stability and Substitution Reactions64
- Ch. 24 - Benzene II: Reactions Influenced by the Aromatic Ring62
- Ch. 25 - Amines: Structure, Reactions, and Synthesis27
- Ch. 26 - Amino Acids, Proteins, and Peptide Synthesis9
- Ch. 27 - Carbohydrates, Nucleic Acids, and Lipids54
Mullins1st EditionOrganic Chemistry: A Learner Centered ApproachISBN: 9780137566471Not the one you use?Change textbook
Chapter 5, Problem 15
Draw the mirror image of the following molecule. Then, using the mirror image generated, switch the spatial orientation at the asymmetric center. Is the final structure the enantiomer of the original? If not, what is it?
Verified step by step guidance1
Step 1: Identify the asymmetric center in the molecule. The asymmetric center is the carbon atom bonded to four different groups: the hydroxyl group (-OH), the benzene ring, the methoxy group (-OCH3), and the hydrogen atom.
Step 2: Draw the mirror image of the molecule. To do this, reflect the spatial arrangement of the groups around the asymmetric center. For example, if the hydroxyl group (-OH) is on a wedge (coming out of the plane), it will now be on a dash (going into the plane) in the mirror image.
Step 3: Switch the spatial orientation at the asymmetric center in the mirror image. This involves interchanging the positions of two groups around the asymmetric center. For instance, swap the positions of the hydroxyl group (-OH) and the hydrogen atom.
Step 4: Compare the final structure obtained after switching the spatial orientation with the original molecule. Determine if the final structure is the enantiomer of the original molecule or if it is identical to the original molecule.
Step 5: Analyze the relationship between the original molecule and the final structure. If the final structure is not the enantiomer, it could be a diastereomer or the same molecule depending on the spatial arrangement of the groups.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Chirality
Chirality refers to the property of a molecule that makes it non-superimposable on its mirror image. This occurs when a carbon atom is bonded to four different substituents, creating an asymmetric center. Molecules that exhibit chirality can exist as two distinct forms, known as enantiomers, which have identical physical properties but differ in their interaction with polarized light and biological systems.
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Enantiomers
Enantiomers are a pair of chiral molecules that are mirror images of each other. They have the same molecular formula and connectivity of atoms but differ in the spatial arrangement of their atoms. Enantiomers can exhibit different chemical behaviors, particularly in chiral environments, such as biological systems, making their distinction crucial in fields like pharmacology.
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Stereochemistry
Stereochemistry is the study of the spatial arrangement of atoms in molecules and how this arrangement affects their chemical properties and reactions. It encompasses concepts such as chirality, enantiomers, and diastereomers. Understanding stereochemistry is essential for predicting the behavior of molecules in reactions and their interactions with other chiral substances.
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Related Practice
Textbook Question
Identify the following substituted cycloalkanes as cis or trans.
(a)
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Textbook Question
A molecule of the type shown here is discussed in greater detail in Section 6.5.1. Draw the mirror image. Is it superimposable? Switch the spatial orientation at both asymmetric centers. Have you generated a new molecule?
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Textbook Question
Identify the following substituted cycloalkanes as cis or trans.
(c)
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Textbook Question
For each of the following chiral molecules, obtain the enantiomer (i) by drawing the nonsuperimposable mirror image and (ii) by switching the spatial orientation at each asymmetric center. Confirm (possibly using models) that the structures you drew for (i) and (ii) are the same.
(b)
Textbook Question
For each of the following chiral molecules, obtain the enantiomer (i) by drawing the nonsuperimposable mirror image and (ii) by switching the spatial orientation at each asymmetric center. Confirm (possibly using models) that the structures you drew for (i) and (ii) are the same.
(d)
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