Assuming the given compound is planar, it is to be determined and explained whether it is aromatic , antiaromatic, or nonaromatic. Concept introduction: Electrons can be resonance delocalized over a set of atoms that contribute conjugated p-orbitals to a single π system of molecular orbitals. For an acyclic conjugated system, the π electrons are the ones that can be shifted via resonance from one end to the other. Counting of the π systems and number of electrons is useful when a compound contains a triple bond. According to the MO theory, the two pi bonds are perpendicular to each other in a triple bond. Therefore, only one of those pi bonds can be conjugated with the neighboring π system.

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Chapter 14, Problem 14.23P

Interpretation Introduction

Interpretation:

Assuming the given compound is planar, it is to be determined and explained whether it is aromatic, antiaromatic, or nonaromatic.

Concept introduction:

Electrons can be resonance delocalized over a set of atoms that contribute conjugated p-orbitals to a single π system of molecular orbitals. For an acyclic conjugated system, the π electrons are the ones that can be shifted via resonance from one end to the other. Counting of the π systems and number of electrons is useful when a compound contains a triple bond. According to the MO theory, the two pi bonds are perpendicular to each other in a triple bond. Therefore, only one of those pi bonds can be conjugated with the neighboring π system.

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Answer 2

Question

Chapter 14, Problem 14.23P

Interpretation Introduction

Interpretation:

Assuming the given compound is planar, it is to be determined and explained whether it is aromatic, antiaromatic, or nonaromatic.

Concept introduction:

Electrons can be resonance delocalized over a set of atoms that contribute conjugated p-orbitals to a single π system of molecular orbitals. For an acyclic conjugated system, the π electrons are the ones that can be shifted via resonance from one end to the other. Counting of the π systems and number of electrons is useful when a compound contains a triple bond. According to the MO theory, the two pi bonds are perpendicular to each other in a triple bond. Therefore, only one of those pi bonds can be conjugated with the neighboring π system.

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Answer 3

Question

Chapter 14, Problem 14.23P

Interpretation Introduction

Interpretation:

Assuming the given compound is planar, it is to be determined and explained whether it is aromatic, antiaromatic, or nonaromatic.

Concept introduction:

Electrons can be resonance delocalized over a set of atoms that contribute conjugated p-orbitals to a single π system of molecular orbitals. For an acyclic conjugated system, the π electrons are the ones that can be shifted via resonance from one end to the other. Counting of the π systems and number of electrons is useful when a compound contains a triple bond. According to the MO theory, the two pi bonds are perpendicular to each other in a triple bond. Therefore, only one of those pi bonds can be conjugated with the neighboring π system.

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Answer 4

Question

Chapter 14, Problem 14.23P

Interpretation Introduction

Interpretation:

Assuming the given compound is planar, it is to be determined and explained whether it is aromatic, antiaromatic, or nonaromatic.

Concept introduction:

Electrons can be resonance delocalized over a set of atoms that contribute conjugated p-orbitals to a single π system of molecular orbitals. For an acyclic conjugated system, the π electrons are the ones that can be shifted via resonance from one end to the other. Counting of the π systems and number of electrons is useful when a compound contains a triple bond. According to the MO theory, the two pi bonds are perpendicular to each other in a triple bond. Therefore, only one of those pi bonds can be conjugated with the neighboring π system.

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Answer 5

Chapter 14, Problem 14.23P

Interpretation Introduction

Interpretation:

Assuming the given compound is planar, it is to be determined and explained whether it is aromatic, antiaromatic, or nonaromatic.

Concept introduction:

Electrons can be resonance delocalized over a set of atoms that contribute conjugated p-orbitals to a single π system of molecular orbitals. For an acyclic conjugated system, the π electrons are the ones that can be shifted via resonance from one end to the other. Counting of the π systems and number of electrons is useful when a compound contains a triple bond. According to the MO theory, the two pi bonds are perpendicular to each other in a triple bond. Therefore, only one of those pi bonds can be conjugated with the neighboring π system.

Answer 6

Chapter 14, Problem 14.23P

Interpretation Introduction

Interpretation:

Assuming the given compound is planar, it is to be determined and explained whether it is aromatic, antiaromatic, or nonaromatic.

Concept introduction:

Electrons can be resonance delocalized over a set of atoms that contribute conjugated p-orbitals to a single π system of molecular orbitals. For an acyclic conjugated system, the π electrons are the ones that can be shifted via resonance from one end to the other. Counting of the π systems and number of electrons is useful when a compound contains a triple bond. According to the MO theory, the two pi bonds are perpendicular to each other in a triple bond. Therefore, only one of those pi bonds can be conjugated with the neighboring π system.

Answer 7

Chapter 14, Problem 14.23P

Interpretation Introduction

Interpretation:

Assuming the given compound is planar, it is to be determined and explained whether it is aromatic, antiaromatic, or nonaromatic.

Concept introduction:

Electrons can be resonance delocalized over a set of atoms that contribute conjugated p-orbitals to a single π system of molecular orbitals. For an acyclic conjugated system, the π electrons are the ones that can be shifted via resonance from one end to the other. Counting of the π systems and number of electrons is useful when a compound contains a triple bond. According to the MO theory, the two pi bonds are perpendicular to each other in a triple bond. Therefore, only one of those pi bonds can be conjugated with the neighboring π system.

Answer 8

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Answer 11

Ch. 14 - Prob. 14.1P Ch. 14 - Prob. 14.2P Ch. 14 - Prob. 14.3P Ch. 14 - Prob. 14.4P Ch. 14 - Prob. 14.5P Ch. 14 - Prob. 14.6P Ch. 14 - Prob. 14.7P Ch. 14 - Prob. 14.8P Ch. 14 - Prob. 14.9P Ch. 14 - Prob. 14.10P

Solution Summary: The author explains that the given compound is antiaromatic, assuming that it is planar. Electrons can be resonance delocalized over a set of atoms.

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Chapter 14 Solutions