General, Organic, and Biological Chemistry - 4th edition
General, Organic, and Biological Chemistry - 4th edition
4th Edition
ISBN: 9781259883989
Author: by Janice Smith
Publisher: McGraw-Hill Education
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Chapter 15, Problem 38P
Interpretation Introduction

(a)

Interpretation:

Whether the given pair of molecules are identical, or enantiomers should be determined.

  General, Organic, and Biological Chemistry - 4th edition, Chapter 15, Problem 38P , additional homework tip  1

Concept Introduction:

Identical molecules are the ones with no isomers, neither constitutional isomers nor stereoisomers. Identical molecules have the same structural arrangement of atoms and the same three-dimensional arrangement.

Isomers are the molecules with the same formula but either with different structural arrangement (constitutional isomers) or different three-dimensional arrangement (stereoisomers).

A tetrahedral carbon atom bonded to four different groups is called a chiral center. A Molecule having at least one chiral center is a chiral molecule. Molecules that do not have any chiral centers are called achiral. Identical molecules do not have any chiral centers; therefore, they are achiral.

  General, Organic, and Biological Chemistry - 4th edition, Chapter 15, Problem 38P , additional homework tip  2

When the mirror images of a chiral molecule are not superimposable, those mirror images become stereoisomers called enantiomers.

  General, Organic, and Biological Chemistry - 4th edition, Chapter 15, Problem 38P , additional homework tip  3

Interpretation Introduction

(b)

Interpretation:

Whether the given pair of molecules are identical, or enantiomers should be determined.

  General, Organic, and Biological Chemistry - 4th edition, Chapter 15, Problem 38P , additional homework tip  4

Concept Introduction:

Identical molecules are the ones with the same chemical formula but no isomers, neither constitutional isomers nor stereoisomers. Identical molecules have the same structural arrangement of atoms and the same three-dimensional arrangement.

Isomers are the molecules with the same formula but either with different structural arrangement (constitutional isomers) or different three-dimensional arrangement (stereoisomers).

A tetrahedral carbon atom bonded to four different groups is called a chiral center. A Molecule having at least one chiral center is a chiral molecule. Molecules that do not have any chiral centers are called achiral. Identical molecules do not have any chiral centers; therefore, they are achiral.

When the mirror images of a chiral molecule are not superimposable, those mirror images become stereoisomers called enantiomers.

  General, Organic, and Biological Chemistry - 4th edition, Chapter 15, Problem 38P , additional homework tip  5

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General, Organic, and Biological Chemistry - 4th edition

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