The number of different kinds of protons present in toluene. Interpretation: The number of different kinds of protons present in toluene is to be determined. Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

Question

Want to see the full answer?

Answer 1

Question

Chapter 13.6, Problem 13.4P

(a)

Interpretation Introduction

To determine: The number of different kinds of protons present in toluene.

Interpretation: The number of different kinds of protons present in toluene is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

(b)

Interpretation Introduction

To explain: The reason as to why the aromatic region around δ 7.2 is broad, with more than one sharp absorption.

Interpretation: The reason as to why the aromatic region around δ 7.2 is broad, with more than one sharp absorption is to be explained.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

3. Identify C-Cl stretching peaks in CDC13 and CHC13 spectra. Do these peaks have exactly the same frequencies for both compounds? Explain your answer. 4. Is the C==O stretching frequency the same for acetone and deuterated acetone? Explain your answer. 5. Identify C==O overtone in acetone spectrum which corresponds to the transition from ground level, n=0, to the second excited level, n=2.

The way a molecule fragments in a mass spectrometer depends upon OA. all of the them B. the stability of the fragments C. the structure of the molecule O D. OE. the energy of the electron beam hitting the molecule the bond strengths

Aspirin has several significant peaks in the FTIR. Match the most significant peaks below (in wavenumbers, cm ¹) with the bond to which the peak corresponds. HO₂C. 3100 (Broad) 1765 1690 1200 H₂C 2950 3050 C-H (sp2-carbon) C=O (ester) C=O (carboxylic acid) C-O O-H C-H (sp3-carbon) → + + + → →

Answer 2

Question

Chapter 13.6, Problem 13.4P

(a)

Interpretation Introduction

To determine: The number of different kinds of protons present in toluene.

Interpretation: The number of different kinds of protons present in toluene is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

(b)

Interpretation Introduction

To explain: The reason as to why the aromatic region around δ 7.2 is broad, with more than one sharp absorption.

Interpretation: The reason as to why the aromatic region around δ 7.2 is broad, with more than one sharp absorption is to be explained.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 13.6, Problem 13.4P

(a)

Interpretation Introduction

To determine: The number of different kinds of protons present in toluene.

Interpretation: The number of different kinds of protons present in toluene is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

(b)

Interpretation Introduction

To explain: The reason as to why the aromatic region around δ 7.2 is broad, with more than one sharp absorption.

Interpretation: The reason as to why the aromatic region around δ 7.2 is broad, with more than one sharp absorption is to be explained.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 13.6, Problem 13.4P

(a)

Interpretation Introduction

To determine: The number of different kinds of protons present in toluene.

Interpretation: The number of different kinds of protons present in toluene is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

(b)

Interpretation Introduction

To explain: The reason as to why the aromatic region around δ 7.2 is broad, with more than one sharp absorption.

Interpretation: The reason as to why the aromatic region around δ 7.2 is broad, with more than one sharp absorption is to be explained.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 5

Chapter 13.6, Problem 13.4P

(a)

Interpretation Introduction

To determine: The number of different kinds of protons present in toluene.

Interpretation: The number of different kinds of protons present in toluene is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

(b)

Interpretation Introduction

To explain: The reason as to why the aromatic region around δ 7.2 is broad, with more than one sharp absorption.

Interpretation: The reason as to why the aromatic region around δ 7.2 is broad, with more than one sharp absorption is to be explained.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

Answer 6

Chapter 13.6, Problem 13.4P

(a)

Interpretation Introduction

To determine: The number of different kinds of protons present in toluene.

Interpretation: The number of different kinds of protons present in toluene is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

Answer 7

Chapter 13.6, Problem 13.4P

(a)

Interpretation Introduction

To determine: The number of different kinds of protons present in toluene.

Interpretation: The number of different kinds of protons present in toluene is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

Answer 8

(b)

Interpretation Introduction

To explain: The reason as to why the aromatic region around δ 7.2 is broad, with more than one sharp absorption.

Interpretation: The reason as to why the aromatic region around δ 7.2 is broad, with more than one sharp absorption is to be explained.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

Answer 9

(b)

Interpretation Introduction

To explain: The reason as to why the aromatic region around δ 7.2 is broad, with more than one sharp absorption.

Interpretation: The reason as to why the aromatic region around δ 7.2 is broad, with more than one sharp absorption is to be explained.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

Answer 10

Expert Solution & Answer

Answer 11

Expert Solution & Answer

Answer 12

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 13

Ch. 13.5A - In a 300-MHz spectrometer, the protons in...Ch. 13.5B - Prob. 13.2P Ch. 13.6 - Determine the number of different kinds of protons...Ch. 13.6 - Prob. 13.4P Ch. 13.7 - Draw the integral trace expected for the NMR...Ch. 13.7 - Prob. 13.6P Ch. 13.8C - Draw the NMR spectra you would expect for the...Ch. 13.8D - Draw the NMR spectra you expect for the following...Ch. 13.8D - a. Assign protons to the peaks in the NMR spectrum...Ch. 13.8D - Prob. 13.10P

Solution Summary: The author explains the chemical shift, which is measured in parts per million and is a dimensionless quantity. The aromatic protons are deshielded by an effective ring of electrons.

Concept explainers

Videos

Want to see the full answer?

Chapter 13 Solutions