The protons of [24] annulenes that are more shielded is to be predicted. Concept introduction: Annulenes have a conjugated electron π system, which produces an induced magnetic field. If the annulene is anti aromatic in nature, then the direction of the induced magnetic field is the same as the direction of applied external magnetic field, and the outer protons are more shielded. If the annulene is aromatic, then the direction of the induced magnetic field is opposite to the direction of applied external magnetic field, and the inner protons are more shielded.

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Answer 1

Question

Chapter 14, Problem 37P

Interpretation Introduction

Interpretation:

The protons of [24] annulenes that are more shielded is to be predicted.

Concept introduction:

Annulenes have a conjugated electron π system, which produces an induced magnetic field.

If the annulene is anti aromatic in nature, then the direction of the induced magnetic field is the same as the direction of applied external magnetic field, and the outer protons are more shielded.

If the annulene is aromatic, then the direction of the induced magnetic field is opposite to the direction of applied external magnetic field, and the inner protons are more shielded.

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Answer 2

Question

Chapter 14, Problem 37P

Interpretation Introduction

Interpretation:

The protons of [24] annulenes that are more shielded is to be predicted.

Concept introduction:

Annulenes have a conjugated electron π system, which produces an induced magnetic field.

If the annulene is anti aromatic in nature, then the direction of the induced magnetic field is the same as the direction of applied external magnetic field, and the outer protons are more shielded.

If the annulene is aromatic, then the direction of the induced magnetic field is opposite to the direction of applied external magnetic field, and the inner protons are more shielded.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 14, Problem 37P

Interpretation Introduction

Interpretation:

The protons of [24] annulenes that are more shielded is to be predicted.

Concept introduction:

Annulenes have a conjugated electron π system, which produces an induced magnetic field.

If the annulene is anti aromatic in nature, then the direction of the induced magnetic field is the same as the direction of applied external magnetic field, and the outer protons are more shielded.

If the annulene is aromatic, then the direction of the induced magnetic field is opposite to the direction of applied external magnetic field, and the inner protons are more shielded.

Expert Solution & Answer

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Answer 4

Question

Chapter 14, Problem 37P

Interpretation Introduction

Interpretation:

The protons of [24] annulenes that are more shielded is to be predicted.

Concept introduction:

Annulenes have a conjugated electron π system, which produces an induced magnetic field.

If the annulene is anti aromatic in nature, then the direction of the induced magnetic field is the same as the direction of applied external magnetic field, and the outer protons are more shielded.

If the annulene is aromatic, then the direction of the induced magnetic field is opposite to the direction of applied external magnetic field, and the inner protons are more shielded.

Expert Solution & Answer

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Answer 5

Chapter 14, Problem 37P

Interpretation Introduction

Interpretation:

The protons of [24] annulenes that are more shielded is to be predicted.

Concept introduction:

Annulenes have a conjugated electron π system, which produces an induced magnetic field.

If the annulene is anti aromatic in nature, then the direction of the induced magnetic field is the same as the direction of applied external magnetic field, and the outer protons are more shielded.

If the annulene is aromatic, then the direction of the induced magnetic field is opposite to the direction of applied external magnetic field, and the inner protons are more shielded.

Answer 6

Chapter 14, Problem 37P

Interpretation Introduction

Interpretation:

The protons of [24] annulenes that are more shielded is to be predicted.

Concept introduction:

Annulenes have a conjugated electron π system, which produces an induced magnetic field.

If the annulene is anti aromatic in nature, then the direction of the induced magnetic field is the same as the direction of applied external magnetic field, and the outer protons are more shielded.

If the annulene is aromatic, then the direction of the induced magnetic field is opposite to the direction of applied external magnetic field, and the inner protons are more shielded.

Answer 7

Chapter 14, Problem 37P

Interpretation Introduction

Interpretation:

The protons of [24] annulenes that are more shielded is to be predicted.

Concept introduction:

Annulenes have a conjugated electron π system, which produces an induced magnetic field.

If the annulene is anti aromatic in nature, then the direction of the induced magnetic field is the same as the direction of applied external magnetic field, and the outer protons are more shielded.

If the annulene is aromatic, then the direction of the induced magnetic field is opposite to the direction of applied external magnetic field, and the inner protons are more shielded.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 14.3 - Prob. 1P Ch. 14.3 - Prob. 2P Ch. 14.4 - The 1H NMR signal for bromoform (CHBr3) appears at...Ch. 14.5 - identify the most shielded and least shielded...Ch. 14.5 - (a) Assign the chemical shifts 1.6, 2.2, and 4.8...Ch. 14.5 - Assign the chemical shifts 1.1, 1.7, 2.0, and 2.3...Ch. 14.5 - Assign the chemical shifts 1.6, 4.0, 7.5, 8.2, and...Ch. 14.6 - The 300-MHz 1H NMR spectrum of 1,4-dimethylbenzene...Ch. 14.6 - Prob. 9P Ch. 14.6 - How many signals would you expect to find in the...

Solution Summary: The author explains that the outer protons of [24]annulene are more shielded than the inner ones.

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Chapter 14 Solutions