Compounds from the 1 H NMR data and the given molecular formula has to be identified. Concept introduction: The 1 H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule. The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the ( N + 1 ) rule. N is the number of adjacent non-equivalent protons. According to the ( N + 1 ) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into ( N + 1 ) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

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Answer 1

Question

Chapter 15, Problem 55P

(a)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

(b)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

(c)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

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Identify each of the following compounds from the 1H NMR data and molecular formula:a. C4H8Br2: a 6H singlet at 1.97 ppma 2H singlet at 3.89 ppm b. C8H9Br: a 3H doublet at 2.01 ppma 1H quartet at 5.14 ppma 5H broad singlet at 7.35 ppm c. C5H10O2: a 3H triplet at 1.15 ppma 3H triplet at 1.25 ppma 2H quartet at 2.33 ppma 2H quartet at 4.13 ppm

1) Propose the structures for the following 1H and 13C NMR spectra. a) Molecular Formula: C5H10O2 1H-NMR, CDCl3 Solvent, Molecular Formula: C5H10O2 13C-NMR, CDCl3 Solvent, Molecular Formula: C5H10O2 in the pictures

Identify A and B, isomers of molecular formula C3H4Cl2, from the given 1H NMR data: Compound A exhibits peaks at 1.75 (doublet, 3 H, J = 6.9 Hz) and 5.89 (quartet, 1 H, J = 6.9 Hz) ppm. Compound B exhibits peaks at 4.16 (singlet, 2 H), 5.42 (doublet, 1 H, J = 1.9 Hz), and 5.59 (doublet, 1 H, J = 1.9 Hz) ppm.

Answer 2

Question

Chapter 15, Problem 55P

(a)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

(b)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

(c)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

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Answer 3

Question

Chapter 15, Problem 55P

(a)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

(b)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

(c)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

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Answer 4

Question

Chapter 15, Problem 55P

(a)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

(b)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

(c)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

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Answer 5

Chapter 15, Problem 55P

(a)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

(b)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

(c)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

Answer 6

Chapter 15, Problem 55P

(a)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

Answer 7

Chapter 15, Problem 55P

(a)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

Answer 8

(b)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

Answer 9

(b)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

Answer 10

(c)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

Answer 11

(c)

Interpretation Introduction

Interpretation:

Compounds from the 1H NMR data and the given molecular formula has to be identified.

Concept introduction:

The 1H NMR spectrum of a compound provides some vital information that is required to predict the structure of the compound. The chemical shift values can predict the groups that are present in the molecule.

The splitting of signals predicts the number of hydrogens or protons attached to the adjacent carbon in a carbon chain of a compound. The single signal is split into multiple peaks called the multiplicity of the signal. Splitting of signals is done according to the (N+1) rule. N is the number of adjacent non-equivalent protons.

According to the (N+1) rule, for a proton-coupled with N adjacent non-equivalent protons, the signal split into (N+1) peak. The splitting is mutual. With this information, the structure of the compound can be predicted.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 15.1 - Prob. 1P Ch. 15.1 - Prob. 2P Ch. 15.4 - How many signals would you expect to see in the 1H...Ch. 15.4 - Prob. 4P Ch. 15.4 - How could you distinguish the 1H NMR spectra of...Ch. 15.4 - Draw an isomer of dichlorocyclopropane that gives...Ch. 15.5 - Prob. 7P Ch. 15.5 - Prob. 8P Ch. 15.5 - Prob. 9P Ch. 15.5 - Where would you expect to find the 1H NMR signal...

Solution Summary: The author explains that the 1H NMR spectrum of a compound provides vital information that is required to predict the structure of the compound.

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