(a) Interpretation: The reason as to why the trityl radical is an unusually stable radical is to be stated. Concept introduction: Resonance is a phenomenon in which polarity is generated in a molecule by the interaction of the conjugated π - bonds or by interaction of the lone pair of electrons and π - bonds. In this phenomenon, the delocalization of the lone pair of electrons occurs. More the resonating structures of a compound, more stable is the compound.

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Answer 1

Question

Chapter 17, Problem 17.54AP

Interpretation Introduction

(a)

Interpretation:

The reason as to why the trityl radical is an unusually stable radical is to be stated.

Concept introduction:

Resonance is a phenomenon in which polarity is generated in a molecule by the interaction of the conjugated π- bonds or by interaction of the lone pair of electrons and π- bonds. In this phenomenon, the delocalization of the lone pair of electrons occurs. More the resonating structures of a compound, more stable is the compound.

Interpretation Introduction

(b)

Interpretation:

The process of formation of a dimer, hexaphenylethane from the trityl radicals is to be stated.

Concept introduction:

Free radical addition reaction is a reaction in which two stable radicals or a radical and a non radical form a bond by sharing their radicals. The reaction takes place in three steps: chain initiation, chain propagation, and chain termination.

Interpretation Introduction

(c)

Interpretation:

The reason as to why the dimer of two trityl radical, ((4-(diphenylmethylene)cyclohexa-2, 5-dienyl)methanetriyl)tribenzene is formed instead of hexaphenylethane is to be stated.

Concept introduction:

Free radical addition reaction is a reaction in which two stable radicals or a radical and a non radical form a bond by sharing their radicals. The reaction takes place in three steps: chain initiation, chain propagation, and chain termination.

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Part II. two unbranched ketone have molecular formulla (C8H100). El-ms showed that both of them have a molecular ion peak at m/2 =128. However ketone (A) has a fragment peak at m/2 = 99 and 72 while ketone (B) snowed a fragment peak at m/2 = 113 and 58. 9) Propose the most plausible structures for both ketones b) Explain how you arrived at your conclusion by drawing the Structures of the distinguishing fragments for each ketone, including their fragmentation mechanisms.

Answer 2

Question

Chapter 17, Problem 17.54AP

Interpretation Introduction

(a)

Interpretation:

The reason as to why the trityl radical is an unusually stable radical is to be stated.

Concept introduction:

Resonance is a phenomenon in which polarity is generated in a molecule by the interaction of the conjugated π- bonds or by interaction of the lone pair of electrons and π- bonds. In this phenomenon, the delocalization of the lone pair of electrons occurs. More the resonating structures of a compound, more stable is the compound.

Interpretation Introduction

(b)

Interpretation:

The process of formation of a dimer, hexaphenylethane from the trityl radicals is to be stated.

Concept introduction:

Free radical addition reaction is a reaction in which two stable radicals or a radical and a non radical form a bond by sharing their radicals. The reaction takes place in three steps: chain initiation, chain propagation, and chain termination.

Interpretation Introduction

(c)

Interpretation:

The reason as to why the dimer of two trityl radical, ((4-(diphenylmethylene)cyclohexa-2, 5-dienyl)methanetriyl)tribenzene is formed instead of hexaphenylethane is to be stated.

Concept introduction:

Free radical addition reaction is a reaction in which two stable radicals or a radical and a non radical form a bond by sharing their radicals. The reaction takes place in three steps: chain initiation, chain propagation, and chain termination.

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Answer 3

Question

Chapter 17, Problem 17.54AP

Interpretation Introduction

(a)

Interpretation:

The reason as to why the trityl radical is an unusually stable radical is to be stated.

Concept introduction:

Resonance is a phenomenon in which polarity is generated in a molecule by the interaction of the conjugated π- bonds or by interaction of the lone pair of electrons and π- bonds. In this phenomenon, the delocalization of the lone pair of electrons occurs. More the resonating structures of a compound, more stable is the compound.

Interpretation Introduction

(b)

Interpretation:

The process of formation of a dimer, hexaphenylethane from the trityl radicals is to be stated.

Concept introduction:

Free radical addition reaction is a reaction in which two stable radicals or a radical and a non radical form a bond by sharing their radicals. The reaction takes place in three steps: chain initiation, chain propagation, and chain termination.

Interpretation Introduction

(c)

Interpretation:

The reason as to why the dimer of two trityl radical, ((4-(diphenylmethylene)cyclohexa-2, 5-dienyl)methanetriyl)tribenzene is formed instead of hexaphenylethane is to be stated.

Concept introduction:

Free radical addition reaction is a reaction in which two stable radicals or a radical and a non radical form a bond by sharing their radicals. The reaction takes place in three steps: chain initiation, chain propagation, and chain termination.

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Answer 4

Question

Chapter 17, Problem 17.54AP

Interpretation Introduction

(a)

Interpretation:

The reason as to why the trityl radical is an unusually stable radical is to be stated.

Concept introduction:

Resonance is a phenomenon in which polarity is generated in a molecule by the interaction of the conjugated π- bonds or by interaction of the lone pair of electrons and π- bonds. In this phenomenon, the delocalization of the lone pair of electrons occurs. More the resonating structures of a compound, more stable is the compound.

Interpretation Introduction

(b)

Interpretation:

The process of formation of a dimer, hexaphenylethane from the trityl radicals is to be stated.

Concept introduction:

Free radical addition reaction is a reaction in which two stable radicals or a radical and a non radical form a bond by sharing their radicals. The reaction takes place in three steps: chain initiation, chain propagation, and chain termination.

Interpretation Introduction

(c)

Interpretation:

The reason as to why the dimer of two trityl radical, ((4-(diphenylmethylene)cyclohexa-2, 5-dienyl)methanetriyl)tribenzene is formed instead of hexaphenylethane is to be stated.

Concept introduction:

Free radical addition reaction is a reaction in which two stable radicals or a radical and a non radical form a bond by sharing their radicals. The reaction takes place in three steps: chain initiation, chain propagation, and chain termination.

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Answer 5

Chapter 17, Problem 17.54AP

Interpretation Introduction

(a)

Interpretation:

The reason as to why the trityl radical is an unusually stable radical is to be stated.

Concept introduction:

Resonance is a phenomenon in which polarity is generated in a molecule by the interaction of the conjugated π- bonds or by interaction of the lone pair of electrons and π- bonds. In this phenomenon, the delocalization of the lone pair of electrons occurs. More the resonating structures of a compound, more stable is the compound.

Interpretation Introduction

(b)

Interpretation:

The process of formation of a dimer, hexaphenylethane from the trityl radicals is to be stated.

Concept introduction:

Free radical addition reaction is a reaction in which two stable radicals or a radical and a non radical form a bond by sharing their radicals. The reaction takes place in three steps: chain initiation, chain propagation, and chain termination.

Interpretation Introduction

(c)

Interpretation:

The reason as to why the dimer of two trityl radical, ((4-(diphenylmethylene)cyclohexa-2, 5-dienyl)methanetriyl)tribenzene is formed instead of hexaphenylethane is to be stated.

Concept introduction:

Free radical addition reaction is a reaction in which two stable radicals or a radical and a non radical form a bond by sharing their radicals. The reaction takes place in three steps: chain initiation, chain propagation, and chain termination.

Answer 6

Chapter 17, Problem 17.54AP

Interpretation Introduction

(a)

Interpretation:

The reason as to why the trityl radical is an unusually stable radical is to be stated.

Concept introduction:

Resonance is a phenomenon in which polarity is generated in a molecule by the interaction of the conjugated π- bonds or by interaction of the lone pair of electrons and π- bonds. In this phenomenon, the delocalization of the lone pair of electrons occurs. More the resonating structures of a compound, more stable is the compound.

Answer 7

Chapter 17, Problem 17.54AP

Interpretation Introduction

(a)

Interpretation:

The reason as to why the trityl radical is an unusually stable radical is to be stated.

Concept introduction:

Resonance is a phenomenon in which polarity is generated in a molecule by the interaction of the conjugated π- bonds or by interaction of the lone pair of electrons and π- bonds. In this phenomenon, the delocalization of the lone pair of electrons occurs. More the resonating structures of a compound, more stable is the compound.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The process of formation of a dimer, hexaphenylethane from the trityl radicals is to be stated.

Concept introduction:

Free radical addition reaction is a reaction in which two stable radicals or a radical and a non radical form a bond by sharing their radicals. The reaction takes place in three steps: chain initiation, chain propagation, and chain termination.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The process of formation of a dimer, hexaphenylethane from the trityl radicals is to be stated.

Concept introduction:

Free radical addition reaction is a reaction in which two stable radicals or a radical and a non radical form a bond by sharing their radicals. The reaction takes place in three steps: chain initiation, chain propagation, and chain termination.

Answer 10

Interpretation Introduction

(c)

Interpretation:

The reason as to why the dimer of two trityl radical, ((4-(diphenylmethylene)cyclohexa-2, 5-dienyl)methanetriyl)tribenzene is formed instead of hexaphenylethane is to be stated.

Concept introduction:

Free radical addition reaction is a reaction in which two stable radicals or a radical and a non radical form a bond by sharing their radicals. The reaction takes place in three steps: chain initiation, chain propagation, and chain termination.

Answer 11

Interpretation Introduction

(c)

Interpretation:

The reason as to why the dimer of two trityl radical, ((4-(diphenylmethylene)cyclohexa-2, 5-dienyl)methanetriyl)tribenzene is formed instead of hexaphenylethane is to be stated.

Concept introduction:

Free radical addition reaction is a reaction in which two stable radicals or a radical and a non radical form a bond by sharing their radicals. The reaction takes place in three steps: chain initiation, chain propagation, and chain termination.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 17 - Prob. 17.1P Ch. 17 - Prob. 17.2P Ch. 17 - Prob. 17.3P Ch. 17 - Prob. 17.4P Ch. 17 - Prob. 17.5P Ch. 17 - Prob. 17.6P Ch. 17 - Prob. 17.7P Ch. 17 - Prob. 17.8P Ch. 17 - Prob. 17.9P Ch. 17 - Prob. 17.10P

Solution Summary: The author explains that the trityl radical is an unusually stable radical because it is stabilized by the resonance effect of the three phenyl rings.

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Chapter 17 Solutions