Among 1, 2-dibromoethane and 1, 2-difluoroethane , the molecule having larger rotational energy barrier about the C-C bond is to be determined and explained. Concept introduction: A rotational energy barrier between two conformations is the difference in energy between the beginning conformation and the highest energy conformation through which the molecule must pass to arrive at the ending conformation. At room temperature, staggered conformations of ethane constantly interconvert through rotation about the C-C single bond. Electron repulsions between atoms or groups of atoms that are not directly bonded together but occupy the same space results in the increase in energy, which is known as steric strain.

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Answer 1

Question

Chapter 4, Problem 4.5P

Interpretation Introduction

Interpretation:

Among 1, 2-dibromoethane and 1, 2-difluoroethane, the molecule having larger rotational energy barrier about the C-C bond is to be determined and explained.

Concept introduction:

A rotational energy barrier between two conformations is the difference in energy between the beginning conformation and the highest energy conformation through which the molecule must pass to arrive at the ending conformation. At room temperature, staggered conformations of ethane constantly interconvert through rotation about the C-C single bond.

Electron repulsions between atoms or groups of atoms that are not directly bonded together but occupy the same space results in the increase in energy, which is known as steric strain.

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Answer 2

Question

Chapter 4, Problem 4.5P

Interpretation Introduction

Interpretation:

Among 1, 2-dibromoethane and 1, 2-difluoroethane, the molecule having larger rotational energy barrier about the C-C bond is to be determined and explained.

Concept introduction:

A rotational energy barrier between two conformations is the difference in energy between the beginning conformation and the highest energy conformation through which the molecule must pass to arrive at the ending conformation. At room temperature, staggered conformations of ethane constantly interconvert through rotation about the C-C single bond.

Electron repulsions between atoms or groups of atoms that are not directly bonded together but occupy the same space results in the increase in energy, which is known as steric strain.

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Answer 3

Question

Chapter 4, Problem 4.5P

Interpretation Introduction

Interpretation:

Among 1, 2-dibromoethane and 1, 2-difluoroethane, the molecule having larger rotational energy barrier about the C-C bond is to be determined and explained.

Concept introduction:

A rotational energy barrier between two conformations is the difference in energy between the beginning conformation and the highest energy conformation through which the molecule must pass to arrive at the ending conformation. At room temperature, staggered conformations of ethane constantly interconvert through rotation about the C-C single bond.

Electron repulsions between atoms or groups of atoms that are not directly bonded together but occupy the same space results in the increase in energy, which is known as steric strain.

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Answer 4

Question

Chapter 4, Problem 4.5P

Interpretation Introduction

Interpretation:

Among 1, 2-dibromoethane and 1, 2-difluoroethane, the molecule having larger rotational energy barrier about the C-C bond is to be determined and explained.

Concept introduction:

A rotational energy barrier between two conformations is the difference in energy between the beginning conformation and the highest energy conformation through which the molecule must pass to arrive at the ending conformation. At room temperature, staggered conformations of ethane constantly interconvert through rotation about the C-C single bond.

Electron repulsions between atoms or groups of atoms that are not directly bonded together but occupy the same space results in the increase in energy, which is known as steric strain.

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Answer 5

Chapter 4, Problem 4.5P

Interpretation Introduction

Interpretation:

Among 1, 2-dibromoethane and 1, 2-difluoroethane, the molecule having larger rotational energy barrier about the C-C bond is to be determined and explained.

Concept introduction:

A rotational energy barrier between two conformations is the difference in energy between the beginning conformation and the highest energy conformation through which the molecule must pass to arrive at the ending conformation. At room temperature, staggered conformations of ethane constantly interconvert through rotation about the C-C single bond.

Electron repulsions between atoms or groups of atoms that are not directly bonded together but occupy the same space results in the increase in energy, which is known as steric strain.

Answer 6

Chapter 4, Problem 4.5P

Interpretation Introduction

Interpretation:

Among 1, 2-dibromoethane and 1, 2-difluoroethane, the molecule having larger rotational energy barrier about the C-C bond is to be determined and explained.

Concept introduction:

A rotational energy barrier between two conformations is the difference in energy between the beginning conformation and the highest energy conformation through which the molecule must pass to arrive at the ending conformation. At room temperature, staggered conformations of ethane constantly interconvert through rotation about the C-C single bond.

Electron repulsions between atoms or groups of atoms that are not directly bonded together but occupy the same space results in the increase in energy, which is known as steric strain.

Answer 7

Chapter 4, Problem 4.5P

Interpretation Introduction

Interpretation:

Among 1, 2-dibromoethane and 1, 2-difluoroethane, the molecule having larger rotational energy barrier about the C-C bond is to be determined and explained.

Concept introduction:

A rotational energy barrier between two conformations is the difference in energy between the beginning conformation and the highest energy conformation through which the molecule must pass to arrive at the ending conformation. At room temperature, staggered conformations of ethane constantly interconvert through rotation about the C-C single bond.

Electron repulsions between atoms or groups of atoms that are not directly bonded together but occupy the same space results in the increase in energy, which is known as steric strain.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 4 - Prob. 4.1P Ch. 4 - Prob. 4.2P Ch. 4 - Prob. 4.3P Ch. 4 - Prob. 4.4P Ch. 4 - Prob. 4.5P Ch. 4 - Prob. 4.6P Ch. 4 - Prob. 4.7P Ch. 4 - Prob. 4.8P Ch. 4 - Prob. 4.9P Ch. 4 - Prob. 4.10P

Solution Summary: The author explains that a rotational energy barrier between two conformations is the difference in energy between the beginning and the highest energy conformation through which the molecule must pass to arrive at the ending

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Chapter 4 Solutions