Proton having greater chemical shift has to be identified. Concept Introduction: 1 H NMR spectroscopy: It is the study of the interaction between electromagnetic radiation and the nuclei of hydrogen atoms and the hydrogen atoms. Chemical equivalence: The number of different kinds of protons in different electronic environments causes the number of signals in a 1 H NMR spectrum. If the protons are in identical electronic environments, then they are said to be chemically equivalent and they produce only one signal. Chemical shift values for protons in different electronic environment T y p e s o f p r o t o n s C h e m i c a l s h i f t M e t h y l ~0 .85 M e t h y l e n e ~1 .2 M e t h i n e ~1 .55 A l l y l i c ~2 A l k y n y l ~2 .5 R − O − C H 3 ~ 3.3 B r − C H 2 − H ~2 .5 − 4 C l − C H 2 − H ~ 3 − 4 V i n y l ~ 4.5 − 6.5 A r y l ~ 6.5 − 8 A l d e h y d e ~ 10 c a r b o x y l i c ~ 12

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Answer 1

Question

Chapter 10.25, Problem 36P

(a)

Interpretation Introduction

Interpretation:

Proton having greater chemical shift has to be identified.

Concept Introduction:

1H NMR spectroscopy:

It is the study of the interaction between electromagnetic radiation and the nuclei of hydrogen atoms and the hydrogen atoms.

Chemical equivalence:

The number of different kinds of protons in different electronic environments causes the number of signals in a 1H NMR spectrum.

If the protons are in identical electronic environments, then they are said to be chemically equivalent and they produce only one signal.

Chemical shift values for protons in different electronic environment

Types of protonsChemical shiftMethyl~0.85Methylene~1.2Methine~1.55Allylic~2Alkynyl~2.5R−O−CH3~3.3Br−CH2−H~2.5−4Cl−CH2−H~3−4Vinyl~4.5−6.5Aryl~6.5−8Aldehyde~10carboxylic~12

(b)

Interpretation Introduction

Interpretation:

Proton having greater chemical shift has to be identified.

Concept Introduction:

1H NMR spectroscopy:

It is the study of the interaction between electromagnetic radiation and the nuclei of hydrogen atoms and the hydrogen atoms.

Chemical equivalence:

The number of different kinds of protons in different electronic environments causes the number of signals in a 1H NMR spectrum.

If the protons are in identical electronic environments, then they are said to be chemically equivalent and they produce only one signal.

Chemical shift values for protons in different electronic environment

Types of protonsChemical shiftMethyl~0.85Methylene~1.2Methine~1.55Allylic~2Alkynyl~2.5R−O−CH3~3.3Br−CH2−H~2.5−4Cl−CH2−H~3−4Vinyl~4.5−6.5Aryl~6.5−8Aldehyde~10carboxylic~12

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Students have asked these similar questions

Label the protin or set of protons in each compound that guves the signal at the lowest frequency a, and the next lowest b, and so on.

Which proton/set of protons generates the signal at 5.88 ppm? Which proton/set of protons generates the signal at 2.3 ppm?

Label each set of chemically equivalent protons, using a for the set that will be at the lowest frequency in the 1H NMR spectrum, b for the next lowest,and so on. Indicate the multiplicity of each signal.

Answer 2

Question

Chapter 10.25, Problem 36P

(a)

Interpretation Introduction

Interpretation:

Proton having greater chemical shift has to be identified.

Concept Introduction:

1H NMR spectroscopy:

It is the study of the interaction between electromagnetic radiation and the nuclei of hydrogen atoms and the hydrogen atoms.

Chemical equivalence:

The number of different kinds of protons in different electronic environments causes the number of signals in a 1H NMR spectrum.

If the protons are in identical electronic environments, then they are said to be chemically equivalent and they produce only one signal.

Chemical shift values for protons in different electronic environment

Types of protonsChemical shiftMethyl~0.85Methylene~1.2Methine~1.55Allylic~2Alkynyl~2.5R−O−CH3~3.3Br−CH2−H~2.5−4Cl−CH2−H~3−4Vinyl~4.5−6.5Aryl~6.5−8Aldehyde~10carboxylic~12

(b)

Interpretation Introduction

Interpretation:

Proton having greater chemical shift has to be identified.

Concept Introduction:

1H NMR spectroscopy:

It is the study of the interaction between electromagnetic radiation and the nuclei of hydrogen atoms and the hydrogen atoms.

Chemical equivalence:

The number of different kinds of protons in different electronic environments causes the number of signals in a 1H NMR spectrum.

If the protons are in identical electronic environments, then they are said to be chemically equivalent and they produce only one signal.

Chemical shift values for protons in different electronic environment

Types of protonsChemical shiftMethyl~0.85Methylene~1.2Methine~1.55Allylic~2Alkynyl~2.5R−O−CH3~3.3Br−CH2−H~2.5−4Cl−CH2−H~3−4Vinyl~4.5−6.5Aryl~6.5−8Aldehyde~10carboxylic~12

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Answer 3

Question

Chapter 10.25, Problem 36P

(a)

Interpretation Introduction

Interpretation:

Proton having greater chemical shift has to be identified.

Concept Introduction:

1H NMR spectroscopy:

It is the study of the interaction between electromagnetic radiation and the nuclei of hydrogen atoms and the hydrogen atoms.

Chemical equivalence:

The number of different kinds of protons in different electronic environments causes the number of signals in a 1H NMR spectrum.

If the protons are in identical electronic environments, then they are said to be chemically equivalent and they produce only one signal.

Chemical shift values for protons in different electronic environment

Types of protonsChemical shiftMethyl~0.85Methylene~1.2Methine~1.55Allylic~2Alkynyl~2.5R−O−CH3~3.3Br−CH2−H~2.5−4Cl−CH2−H~3−4Vinyl~4.5−6.5Aryl~6.5−8Aldehyde~10carboxylic~12

(b)

Interpretation Introduction

Interpretation:

Proton having greater chemical shift has to be identified.

Concept Introduction:

1H NMR spectroscopy:

It is the study of the interaction between electromagnetic radiation and the nuclei of hydrogen atoms and the hydrogen atoms.

Chemical equivalence:

The number of different kinds of protons in different electronic environments causes the number of signals in a 1H NMR spectrum.

If the protons are in identical electronic environments, then they are said to be chemically equivalent and they produce only one signal.

Chemical shift values for protons in different electronic environment

Types of protonsChemical shiftMethyl~0.85Methylene~1.2Methine~1.55Allylic~2Alkynyl~2.5R−O−CH3~3.3Br−CH2−H~2.5−4Cl−CH2−H~3−4Vinyl~4.5−6.5Aryl~6.5−8Aldehyde~10carboxylic~12

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Answer 4

Question

Chapter 10.25, Problem 36P

(a)

Interpretation Introduction

Interpretation:

Proton having greater chemical shift has to be identified.

Concept Introduction:

1H NMR spectroscopy:

It is the study of the interaction between electromagnetic radiation and the nuclei of hydrogen atoms and the hydrogen atoms.

Chemical equivalence:

The number of different kinds of protons in different electronic environments causes the number of signals in a 1H NMR spectrum.

If the protons are in identical electronic environments, then they are said to be chemically equivalent and they produce only one signal.

Chemical shift values for protons in different electronic environment

Types of protonsChemical shiftMethyl~0.85Methylene~1.2Methine~1.55Allylic~2Alkynyl~2.5R−O−CH3~3.3Br−CH2−H~2.5−4Cl−CH2−H~3−4Vinyl~4.5−6.5Aryl~6.5−8Aldehyde~10carboxylic~12

(b)

Interpretation Introduction

Interpretation:

Proton having greater chemical shift has to be identified.

Concept Introduction:

1H NMR spectroscopy:

It is the study of the interaction between electromagnetic radiation and the nuclei of hydrogen atoms and the hydrogen atoms.

Chemical equivalence:

The number of different kinds of protons in different electronic environments causes the number of signals in a 1H NMR spectrum.

If the protons are in identical electronic environments, then they are said to be chemically equivalent and they produce only one signal.

Chemical shift values for protons in different electronic environment

Types of protonsChemical shiftMethyl~0.85Methylene~1.2Methine~1.55Allylic~2Alkynyl~2.5R−O−CH3~3.3Br−CH2−H~2.5−4Cl−CH2−H~3−4Vinyl~4.5−6.5Aryl~6.5−8Aldehyde~10carboxylic~12

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Answer 5

Chapter 10.25, Problem 36P

(a)

Interpretation Introduction

Interpretation:

Proton having greater chemical shift has to be identified.

Concept Introduction:

1H NMR spectroscopy:

It is the study of the interaction between electromagnetic radiation and the nuclei of hydrogen atoms and the hydrogen atoms.

Chemical equivalence:

The number of different kinds of protons in different electronic environments causes the number of signals in a 1H NMR spectrum.

If the protons are in identical electronic environments, then they are said to be chemically equivalent and they produce only one signal.

Chemical shift values for protons in different electronic environment

Types of protonsChemical shiftMethyl~0.85Methylene~1.2Methine~1.55Allylic~2Alkynyl~2.5R−O−CH3~3.3Br−CH2−H~2.5−4Cl−CH2−H~3−4Vinyl~4.5−6.5Aryl~6.5−8Aldehyde~10carboxylic~12

(b)

Interpretation Introduction

Interpretation:

Proton having greater chemical shift has to be identified.

Concept Introduction:

1H NMR spectroscopy:

It is the study of the interaction between electromagnetic radiation and the nuclei of hydrogen atoms and the hydrogen atoms.

Chemical equivalence:

The number of different kinds of protons in different electronic environments causes the number of signals in a 1H NMR spectrum.

If the protons are in identical electronic environments, then they are said to be chemically equivalent and they produce only one signal.

Chemical shift values for protons in different electronic environment

Types of protonsChemical shiftMethyl~0.85Methylene~1.2Methine~1.55Allylic~2Alkynyl~2.5R−O−CH3~3.3Br−CH2−H~2.5−4Cl−CH2−H~3−4Vinyl~4.5−6.5Aryl~6.5−8Aldehyde~10carboxylic~12

Answer 6

Chapter 10.25, Problem 36P

(a)

Interpretation Introduction

Interpretation:

Proton having greater chemical shift has to be identified.

Concept Introduction:

1H NMR spectroscopy:

It is the study of the interaction between electromagnetic radiation and the nuclei of hydrogen atoms and the hydrogen atoms.

Chemical equivalence:

The number of different kinds of protons in different electronic environments causes the number of signals in a 1H NMR spectrum.

If the protons are in identical electronic environments, then they are said to be chemically equivalent and they produce only one signal.

Chemical shift values for protons in different electronic environment

Types of protonsChemical shiftMethyl~0.85Methylene~1.2Methine~1.55Allylic~2Alkynyl~2.5R−O−CH3~3.3Br−CH2−H~2.5−4Cl−CH2−H~3−4Vinyl~4.5−6.5Aryl~6.5−8Aldehyde~10carboxylic~12

Answer 7

Chapter 10.25, Problem 36P

(a)

Interpretation Introduction

Interpretation:

Proton having greater chemical shift has to be identified.

Concept Introduction:

1H NMR spectroscopy:

It is the study of the interaction between electromagnetic radiation and the nuclei of hydrogen atoms and the hydrogen atoms.

Chemical equivalence:

The number of different kinds of protons in different electronic environments causes the number of signals in a 1H NMR spectrum.

If the protons are in identical electronic environments, then they are said to be chemically equivalent and they produce only one signal.

Chemical shift values for protons in different electronic environment

Types of protonsChemical shiftMethyl~0.85Methylene~1.2Methine~1.55Allylic~2Alkynyl~2.5R−O−CH3~3.3Br−CH2−H~2.5−4Cl−CH2−H~3−4Vinyl~4.5−6.5Aryl~6.5−8Aldehyde~10carboxylic~12

Answer 8

(b)

Interpretation Introduction

Interpretation:

Proton having greater chemical shift has to be identified.

Concept Introduction:

1H NMR spectroscopy:

It is the study of the interaction between electromagnetic radiation and the nuclei of hydrogen atoms and the hydrogen atoms.

Chemical equivalence:

The number of different kinds of protons in different electronic environments causes the number of signals in a 1H NMR spectrum.

If the protons are in identical electronic environments, then they are said to be chemically equivalent and they produce only one signal.

Chemical shift values for protons in different electronic environment

Types of protonsChemical shiftMethyl~0.85Methylene~1.2Methine~1.55Allylic~2Alkynyl~2.5R−O−CH3~3.3Br−CH2−H~2.5−4Cl−CH2−H~3−4Vinyl~4.5−6.5Aryl~6.5−8Aldehyde~10carboxylic~12

Answer 9

(b)

Interpretation Introduction

Interpretation:

Proton having greater chemical shift has to be identified.

Concept Introduction:

1H NMR spectroscopy:

It is the study of the interaction between electromagnetic radiation and the nuclei of hydrogen atoms and the hydrogen atoms.

Chemical equivalence:

The number of different kinds of protons in different electronic environments causes the number of signals in a 1H NMR spectrum.

If the protons are in identical electronic environments, then they are said to be chemically equivalent and they produce only one signal.

Chemical shift values for protons in different electronic environment

Types of protonsChemical shiftMethyl~0.85Methylene~1.2Methine~1.55Allylic~2Alkynyl~2.5R−O−CH3~3.3Br−CH2−H~2.5−4Cl−CH2−H~3−4Vinyl~4.5−6.5Aryl~6.5−8Aldehyde~10carboxylic~12

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 10.1 - Prob. 1P Ch. 10.2 - What would distinguish the mass spectrum of...Ch. 10.2 - Prob. 3P Ch. 10.3 - Prob. 5P Ch. 10.3 - Suggest possible molecular formulas for a compound...Ch. 10.3 - Prob. 7P Ch. 10.4 - Prob. 8P Ch. 10.4 - Prob. 9P Ch. 10.5 - Prob. 10P Ch. 10.5 - Prob. 11P

Solution Summary: The author explains the chemical equivalence of different kinds of protons in different electronic environments.

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