(a) Interpretation: The number of pi electrons in the given molecule is to be determined. Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic . For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4 n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule. According to the Huckel’s rule, the number of π electrons in the molecule must be equal to ( 4 n + 2 ) .

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Answer 1

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Definition Definition Rule that estimates whether a given organic planar ring structure will show an aromatic property. A cyclic ring molecule is said to follow Hückel’s rule if the л-electrons count in a molecule is [4n+2], where n stands for a positive numerical value. It is also called the [4n+2] rule. Hückel's rule, sometimes referred to as the aromaticity rule, is one but not the only criteria to judge a molecule for aromaticity.

Chapter 17, Problem 17.31P

Interpretation Introduction

(a)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(b)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(c)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(d)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule the number of π electrons in the molecule must be equal to (4n+2).

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Answer 2

Question

Definition Definition Rule that estimates whether a given organic planar ring structure will show an aromatic property. A cyclic ring molecule is said to follow Hückel’s rule if the л-electrons count in a molecule is [4n+2], where n stands for a positive numerical value. It is also called the [4n+2] rule. Hückel's rule, sometimes referred to as the aromaticity rule, is one but not the only criteria to judge a molecule for aromaticity.

Chapter 17, Problem 17.31P

Interpretation Introduction

(a)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(b)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(c)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(d)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule the number of π electrons in the molecule must be equal to (4n+2).

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Answer 3

Question

Definition Definition Rule that estimates whether a given organic planar ring structure will show an aromatic property. A cyclic ring molecule is said to follow Hückel’s rule if the л-electrons count in a molecule is [4n+2], where n stands for a positive numerical value. It is also called the [4n+2] rule. Hückel's rule, sometimes referred to as the aromaticity rule, is one but not the only criteria to judge a molecule for aromaticity.

Chapter 17, Problem 17.31P

Interpretation Introduction

(a)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(b)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(c)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(d)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule the number of π electrons in the molecule must be equal to (4n+2).

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Answer 4

Question

Definition Definition Rule that estimates whether a given organic planar ring structure will show an aromatic property. A cyclic ring molecule is said to follow Hückel’s rule if the л-electrons count in a molecule is [4n+2], where n stands for a positive numerical value. It is also called the [4n+2] rule. Hückel's rule, sometimes referred to as the aromaticity rule, is one but not the only criteria to judge a molecule for aromaticity.

Chapter 17, Problem 17.31P

Interpretation Introduction

(a)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(b)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(c)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(d)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule the number of π electrons in the molecule must be equal to (4n+2).

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Answer 5

Chapter 17, Problem 17.31P

Interpretation Introduction

(a)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(b)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(c)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule the number of π electrons in the molecule must be equal to (4n+2).

Interpretation Introduction

(d)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule the number of π electrons in the molecule must be equal to (4n+2).

Answer 6

Chapter 17, Problem 17.31P

Interpretation Introduction

(a)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Answer 7

Chapter 17, Problem 17.31P

Interpretation Introduction

(a)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Answer 8

Interpretation Introduction

(b)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Answer 9

Interpretation Introduction

(b)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule, the number of π electrons in the molecule must be equal to (4n+2).

Answer 10

Interpretation Introduction

(c)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule the number of π electrons in the molecule must be equal to (4n+2).

Answer 11

Interpretation Introduction

(c)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule the number of π electrons in the molecule must be equal to (4n+2).

Answer 12

Interpretation Introduction

(d)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule the number of π electrons in the molecule must be equal to (4n+2).

Answer 13

Interpretation Introduction

(d)

Interpretation: The number of pi electrons in the given molecule is to be determined.

Concept introduction: A molecule must be cyclic, planar, completely conjugated and should follow Huckel’s rule to be classified as aromatic. For an antiaromatic molecule, the molecule must be cyclic, planar, completely conjugated and have 4n π electrons. For a non-aromatic molecule, the molecule lacks the one of the requirements to be aromatic or anti aromatic molecule.

According to the Huckel’s rule the number of π electrons in the molecule must be equal to (4n+2).

Answer 14

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Answer 15

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Answer 16

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Answer 17

Ch. 17 - Prob. 17.1P Ch. 17 - What orbitals are used to form the bonds indicated...Ch. 17 - Give the IUPAC name for each compound.Ch. 17 - Prob. 17.4P Ch. 17 - Problem-17.5 What is the structure of propofol,...Ch. 17 - Problem 17.6 What is the structure of a compound...Ch. 17 - How many 13C NMR signals does each compound...Ch. 17 - Prob. 17.8P Ch. 17 - Prob. 17.9P Ch. 17 - Prob. 17.10P

Solution Summary: The author explains that a molecule must be cyclic, planar, completely conjugated and follow Huckel's rule to be classified as aromatic.

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