(a) Interpretation: The aromatic cyclopolyenes that are neutral are to be predicted. Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to ( 4 n + 2 ) .

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Answer 1

Question

Chapter 15, Problem 15.54E

Interpretation Introduction

(a)

Interpretation:

The aromatic cyclopolyenes that are neutral are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(b)

Interpretation:

The aromatic cyclopolyenes that have single negative charge are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(c)

Interpretation:

The aromatic cyclopolyenes that have double negative charge are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

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Answer 2

Question

Chapter 15, Problem 15.54E

Interpretation Introduction

(a)

Interpretation:

The aromatic cyclopolyenes that are neutral are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(b)

Interpretation:

The aromatic cyclopolyenes that have single negative charge are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(c)

Interpretation:

The aromatic cyclopolyenes that have double negative charge are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

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Answer 3

Question

Chapter 15, Problem 15.54E

Interpretation Introduction

(a)

Interpretation:

The aromatic cyclopolyenes that are neutral are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(b)

Interpretation:

The aromatic cyclopolyenes that have single negative charge are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(c)

Interpretation:

The aromatic cyclopolyenes that have double negative charge are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

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Answer 4

Question

Chapter 15, Problem 15.54E

Interpretation Introduction

(a)

Interpretation:

The aromatic cyclopolyenes that are neutral are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(b)

Interpretation:

The aromatic cyclopolyenes that have single negative charge are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(c)

Interpretation:

The aromatic cyclopolyenes that have double negative charge are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

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Answer 5

Chapter 15, Problem 15.54E

Interpretation Introduction

(a)

Interpretation:

The aromatic cyclopolyenes that are neutral are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(b)

Interpretation:

The aromatic cyclopolyenes that have single negative charge are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(c)

Interpretation:

The aromatic cyclopolyenes that have double negative charge are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Answer 6

Chapter 15, Problem 15.54E

Interpretation Introduction

(a)

Interpretation:

The aromatic cyclopolyenes that are neutral are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Answer 7

Chapter 15, Problem 15.54E

Interpretation Introduction

(a)

Interpretation:

The aromatic cyclopolyenes that are neutral are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Answer 8

Interpretation Introduction

(b)

Interpretation:

The aromatic cyclopolyenes that have single negative charge are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Answer 9

Interpretation Introduction

(b)

Interpretation:

The aromatic cyclopolyenes that have single negative charge are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Answer 10

Interpretation Introduction

(c)

Interpretation:

The aromatic cyclopolyenes that have double negative charge are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Answer 11

Interpretation Introduction

(c)

Interpretation:

The aromatic cyclopolyenes that have double negative charge are to be predicted.

Concept introduction:

A molecule must be cyclic, planar, completely conjugated and should follow Hückel’s rule to be classified as aromatic. According to the Hückel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 15 - Linearly polarized light can be assigned a...Ch. 15 - Linearly polarized light can be assigned a...Ch. 15 - Prob. 15.3E Ch. 15 - Determine the value of R for deuterium (2H) and...Ch. 15 - Prob. 15.5E Ch. 15 - Draw a Grotrian-type diagram for the first four...Ch. 15 - What is the value of the change in energy, E, for...Ch. 15 - Prob. 15.8E Ch. 15 - List the possible values of L, ML, S, MS, J, and...Ch. 15 - Prob. 15.10E

Solution Summary: The author explains the Hückel rule of aromaticity, which states that an aromatic compound must have 4n+2pi electrons.

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Chapter 15 Solutions