The range of chemical shifts in the given compound is to be determined. Concept introduction: Nuclear magnetic resonance (NMR) is one of the most capable analytical techniques used for determining the functional groups and how the atoms are structured and arranged in a molecule. A compound containing protons or carbon-13 when placed under very strong magnetic field and treated with electromagnetic energy radiation of suitable frequency, the nuclei of the compound absorb energy through a process called magnetic resonance. Nuclear magnetic resonance spectroscopy is a graph showing characteristic energy absorption frequencies and intensities of a compound under magnetic field. Chemical shifts are positions of signals along the x -axis in the nuclear magnetic spectroscopy. It gives an idea on how many different hydrogen atoms are present in a given H-NMR for a particular compound. More electronegative atoms attached to the group, more the protons are deshielded; more will be the chemical shift value.

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Answer 1

Question

Chapter 9, Problem 1PP

Interpretation Introduction

Interpretation:

The range of chemical shifts in the given compound is to be determined.

Concept introduction:

Nuclear magnetic resonance (NMR) is one of the most capable analytical techniques used for determining the functional groups and how the atoms are structured and arranged in a molecule.

A compound containing protons or carbon-13 when placed under very strong magnetic field and treated with electromagnetic energy radiation of suitable frequency, the nuclei of the compound absorb energy through a process called magnetic resonance.

Nuclear magnetic resonance spectroscopy is a graph showing characteristic energy absorption frequencies and intensities of a compound under magnetic field.

Chemical shifts are positions of signals along the x-axis in the nuclear magnetic spectroscopy. It gives an idea on how many different hydrogen atoms are present in a given H-NMR for a particular compound.

More electronegative atoms attached to the group, more the protons are deshielded; more will be the chemical shift value.

Expert Solution & Answer

Answer to Problem 1PP

Solution:

Chemical shifts for ethyl acetate are at 0.8−1.2 ppm, 2.0−2.6 ppm, and 3.3−3.9 ppm.

Explanation of Solution

Structure of ethyl acetate CH3CO2CH2CH3 is as follows:

EBK ORGANIC CHEMISTRY, Chapter 9, Problem 1PP

From the structure, we have three types of hydrogens and from table 9.1 chemical shifts result in the values as follows:

−CH3 :0.8−1.2 ppm (Ha)−COCH3−:2.0−2.6 ppm (Hb)−CO−CH2−:3.3−3.9 ppm (Hc)

Conclusion

The chemical shifts are in the ranges of 0.8−1.2 ppm, 2.0−2.6 ppm, and 3.3−3.9 ppm.

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Answer 2

Question

Chapter 9, Problem 1PP

Interpretation Introduction

Interpretation:

The range of chemical shifts in the given compound is to be determined.

Concept introduction:

Nuclear magnetic resonance (NMR) is one of the most capable analytical techniques used for determining the functional groups and how the atoms are structured and arranged in a molecule.

A compound containing protons or carbon-13 when placed under very strong magnetic field and treated with electromagnetic energy radiation of suitable frequency, the nuclei of the compound absorb energy through a process called magnetic resonance.

Nuclear magnetic resonance spectroscopy is a graph showing characteristic energy absorption frequencies and intensities of a compound under magnetic field.

Chemical shifts are positions of signals along the x-axis in the nuclear magnetic spectroscopy. It gives an idea on how many different hydrogen atoms are present in a given H-NMR for a particular compound.

More electronegative atoms attached to the group, more the protons are deshielded; more will be the chemical shift value.

Expert Solution & Answer

Answer to Problem 1PP

Solution:

Chemical shifts for ethyl acetate are at 0.8−1.2 ppm, 2.0−2.6 ppm, and 3.3−3.9 ppm.

Explanation of Solution

Structure of ethyl acetate CH3CO2CH2CH3 is as follows:

EBK ORGANIC CHEMISTRY, Chapter 9, Problem 1PP

From the structure, we have three types of hydrogens and from table 9.1 chemical shifts result in the values as follows:

−CH3 :0.8−1.2 ppm (Ha)−COCH3−:2.0−2.6 ppm (Hb)−CO−CH2−:3.3−3.9 ppm (Hc)

Conclusion

The chemical shifts are in the ranges of 0.8−1.2 ppm, 2.0−2.6 ppm, and 3.3−3.9 ppm.

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Answer 3

Question

Chapter 9, Problem 1PP

Interpretation Introduction

Interpretation:

The range of chemical shifts in the given compound is to be determined.

Concept introduction:

Nuclear magnetic resonance (NMR) is one of the most capable analytical techniques used for determining the functional groups and how the atoms are structured and arranged in a molecule.

A compound containing protons or carbon-13 when placed under very strong magnetic field and treated with electromagnetic energy radiation of suitable frequency, the nuclei of the compound absorb energy through a process called magnetic resonance.

Nuclear magnetic resonance spectroscopy is a graph showing characteristic energy absorption frequencies and intensities of a compound under magnetic field.

Chemical shifts are positions of signals along the x-axis in the nuclear magnetic spectroscopy. It gives an idea on how many different hydrogen atoms are present in a given H-NMR for a particular compound.

More electronegative atoms attached to the group, more the protons are deshielded; more will be the chemical shift value.

Expert Solution & Answer

Answer to Problem 1PP

Solution:

Chemical shifts for ethyl acetate are at 0.8−1.2 ppm, 2.0−2.6 ppm, and 3.3−3.9 ppm.

Explanation of Solution

Structure of ethyl acetate CH3CO2CH2CH3 is as follows:

EBK ORGANIC CHEMISTRY, Chapter 9, Problem 1PP

From the structure, we have three types of hydrogens and from table 9.1 chemical shifts result in the values as follows:

−CH3 :0.8−1.2 ppm (Ha)−COCH3−:2.0−2.6 ppm (Hb)−CO−CH2−:3.3−3.9 ppm (Hc)

Conclusion

The chemical shifts are in the ranges of 0.8−1.2 ppm, 2.0−2.6 ppm, and 3.3−3.9 ppm.

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Answer 4

Question

Chapter 9, Problem 1PP

Interpretation Introduction

Interpretation:

The range of chemical shifts in the given compound is to be determined.

Concept introduction:

Nuclear magnetic resonance (NMR) is one of the most capable analytical techniques used for determining the functional groups and how the atoms are structured and arranged in a molecule.

A compound containing protons or carbon-13 when placed under very strong magnetic field and treated with electromagnetic energy radiation of suitable frequency, the nuclei of the compound absorb energy through a process called magnetic resonance.

Nuclear magnetic resonance spectroscopy is a graph showing characteristic energy absorption frequencies and intensities of a compound under magnetic field.

Chemical shifts are positions of signals along the x-axis in the nuclear magnetic spectroscopy. It gives an idea on how many different hydrogen atoms are present in a given H-NMR for a particular compound.

More electronegative atoms attached to the group, more the protons are deshielded; more will be the chemical shift value.

Expert Solution & Answer

Answer to Problem 1PP

Solution:

Chemical shifts for ethyl acetate are at 0.8−1.2 ppm, 2.0−2.6 ppm, and 3.3−3.9 ppm.

Explanation of Solution

Structure of ethyl acetate CH3CO2CH2CH3 is as follows:

EBK ORGANIC CHEMISTRY, Chapter 9, Problem 1PP

From the structure, we have three types of hydrogens and from table 9.1 chemical shifts result in the values as follows:

−CH3 :0.8−1.2 ppm (Ha)−COCH3−:2.0−2.6 ppm (Hb)−CO−CH2−:3.3−3.9 ppm (Hc)

Conclusion

The chemical shifts are in the ranges of 0.8−1.2 ppm, 2.0−2.6 ppm, and 3.3−3.9 ppm.

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Answer 5

Chapter 9, Problem 1PP

Interpretation Introduction

Interpretation:

The range of chemical shifts in the given compound is to be determined.

Concept introduction:

Nuclear magnetic resonance (NMR) is one of the most capable analytical techniques used for determining the functional groups and how the atoms are structured and arranged in a molecule.

A compound containing protons or carbon-13 when placed under very strong magnetic field and treated with electromagnetic energy radiation of suitable frequency, the nuclei of the compound absorb energy through a process called magnetic resonance.

Nuclear magnetic resonance spectroscopy is a graph showing characteristic energy absorption frequencies and intensities of a compound under magnetic field.

Chemical shifts are positions of signals along the x-axis in the nuclear magnetic spectroscopy. It gives an idea on how many different hydrogen atoms are present in a given H-NMR for a particular compound.

More electronegative atoms attached to the group, more the protons are deshielded; more will be the chemical shift value.

Expert Solution & Answer

Answer to Problem 1PP

Solution:

Chemical shifts for ethyl acetate are at 0.8−1.2 ppm, 2.0−2.6 ppm, and 3.3−3.9 ppm.

Explanation of Solution

Structure of ethyl acetate CH3CO2CH2CH3 is as follows:

EBK ORGANIC CHEMISTRY, Chapter 9, Problem 1PP

From the structure, we have three types of hydrogens and from table 9.1 chemical shifts result in the values as follows:

−CH3 :0.8−1.2 ppm (Ha)−COCH3−:2.0−2.6 ppm (Hb)−CO−CH2−:3.3−3.9 ppm (Hc)

Conclusion

The chemical shifts are in the ranges of 0.8−1.2 ppm, 2.0−2.6 ppm, and 3.3−3.9 ppm.

Answer 6

Chapter 9, Problem 1PP

Interpretation Introduction

Interpretation:

The range of chemical shifts in the given compound is to be determined.

Concept introduction:

Nuclear magnetic resonance (NMR) is one of the most capable analytical techniques used for determining the functional groups and how the atoms are structured and arranged in a molecule.

A compound containing protons or carbon-13 when placed under very strong magnetic field and treated with electromagnetic energy radiation of suitable frequency, the nuclei of the compound absorb energy through a process called magnetic resonance.

Nuclear magnetic resonance spectroscopy is a graph showing characteristic energy absorption frequencies and intensities of a compound under magnetic field.

Chemical shifts are positions of signals along the x-axis in the nuclear magnetic spectroscopy. It gives an idea on how many different hydrogen atoms are present in a given H-NMR for a particular compound.

More electronegative atoms attached to the group, more the protons are deshielded; more will be the chemical shift value.

Expert Solution & Answer

Answer to Problem 1PP

Solution:

Chemical shifts for ethyl acetate are at 0.8−1.2 ppm, 2.0−2.6 ppm, and 3.3−3.9 ppm.

Explanation of Solution

Structure of ethyl acetate CH3CO2CH2CH3 is as follows:

EBK ORGANIC CHEMISTRY, Chapter 9, Problem 1PP

From the structure, we have three types of hydrogens and from table 9.1 chemical shifts result in the values as follows:

−CH3 :0.8−1.2 ppm (Ha)−COCH3−:2.0−2.6 ppm (Hb)−CO−CH2−:3.3−3.9 ppm (Hc)

Conclusion

The chemical shifts are in the ranges of 0.8−1.2 ppm, 2.0−2.6 ppm, and 3.3−3.9 ppm.

Answer 7

Chapter 9, Problem 1PP

Interpretation Introduction

Interpretation:

The range of chemical shifts in the given compound is to be determined.

Concept introduction:

Nuclear magnetic resonance (NMR) is one of the most capable analytical techniques used for determining the functional groups and how the atoms are structured and arranged in a molecule.

A compound containing protons or carbon-13 when placed under very strong magnetic field and treated with electromagnetic energy radiation of suitable frequency, the nuclei of the compound absorb energy through a process called magnetic resonance.

Nuclear magnetic resonance spectroscopy is a graph showing characteristic energy absorption frequencies and intensities of a compound under magnetic field.

Chemical shifts are positions of signals along the x-axis in the nuclear magnetic spectroscopy. It gives an idea on how many different hydrogen atoms are present in a given H-NMR for a particular compound.

More electronegative atoms attached to the group, more the protons are deshielded; more will be the chemical shift value.

Answer 8

Expert Solution & Answer

Answer to Problem 1PP

Solution:

Chemical shifts for ethyl acetate are at 0.8−1.2 ppm, 2.0−2.6 ppm, and 3.3−3.9 ppm.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Structure of ethyl acetate CH3CO2CH2CH3 is as follows:

EBK ORGANIC CHEMISTRY, Chapter 9, Problem 1PP

From the structure, we have three types of hydrogens and from table 9.1 chemical shifts result in the values as follows:

−CH3 :0.8−1.2 ppm (Ha)−COCH3−:2.0−2.6 ppm (Hb)−CO−CH2−:3.3−3.9 ppm (Hc)

Answer 12

Conclusion

The chemical shifts are in the ranges of 0.8−1.2 ppm, 2.0−2.6 ppm, and 3.3−3.9 ppm.

Answer 13

Ch. 9 - Prob. 1PP Ch. 9 - PRACTICE PROBLEM 9.2 What compound with molecular...Ch. 9 - PRACTICE PROBLEM 9.3 Using the method of Section...Ch. 9 - PRACTICE PROBLEM 9.4 How many signals would each...Ch. 9 - Prob. 5PP Ch. 9 - Prob. 6PP Ch. 9 - PRACTICE PROBLEM 9.7 The relative chemical shifts...Ch. 9 - Prob. 8PP Ch. 9 - PRACTICE PROBLEM 9.9 Propose a structure for...Ch. 9 - PRACTICE PROBLEM 9.10 What is the dihedral angle...

Concept explainers

Answer to Problem 1PP

Explanation of Solution

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Chapter 9 Solutions